diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 23b27d08..dc3a0407 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -79,7 +79,7 @@ jobs:
         run: composer install --prefer-dist --no-progress --no-suggest
 
       - name: Coding Guideline
-        run: .build/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --dry-run --using-cache=no --path-mode=intersection ./
+        run: composer project:cgl
 
   code-quality:
     runs-on: ubuntu-latest
@@ -87,15 +87,11 @@ jobs:
       - php-linting
     strategy:
       matrix:
-        include:
-          - php-version: '8.2'
-            typo3-version: '^13.4'
-          - php-version: '8.3'
-            typo3-version: '^13.4'
-          - php-version: '8.4'
-            typo3-version: '^13.4'
-          - php-version: '8.5'
-            typo3-version: '^13.4'
+        php-version:
+          - 8.2
+          - 8.3
+          - 8.4
+          - 8.5
     steps:
       - uses: actions/checkout@v4
 
@@ -112,41 +108,35 @@ jobs:
           && composer install --no-progress --no-ansi --no-interaction
 
       - name: Code Quality (by PHPStan)
-        run: .build/bin/phpstan analyse -c Build/phpstan.neon
+        run: composer project:phpstan
 
-  tests-phpunit:
+  tests-unit-and-functional:
     runs-on: ubuntu-latest
     needs:
       - coding-guideline
       - code-quality
+    strategy:
+      matrix:
+        php-version:
+          - 8.2
+          - 8.3
+          - 8.4
+          - 8.5
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v17
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
-
-      - name: Run Unit Tests PHP8.2
-        run: nix-shell --arg phpVersion \"php82\" --pure --run project-test-unit
-
-      - name: Run Unit Tests PHP8.3
-        run: nix-shell --arg phpVersion \"php83\" --pure --run project-test-unit
-
-      - name: Run Unit Tests PHP8.4
-        run: nix-shell --arg phpVersion \"php84\" --pure --run project-test-unit
-
-      - name: Run Unit Tests PHP8.5
-        run: nix-shell --arg phpVersion \"php85\" --pure --run project-test-unit
-
-      - name: Run Functional Tests PHP8.2
-        run: nix-shell --arg phpVersion \"php82\" --pure --run project-test-functional
+          php-version: "${{ matrix.php-version }}"
+          tools: composer:v2
 
-      - name: Run Functional Tests PHP8.3
-        run: nix-shell --arg phpVersion \"php83\" --pure --run project-test-functional
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
 
-      - name: Run Functional Tests PHP8.4
-        run: nix-shell --arg phpVersion \"php84\" --pure --run project-test-functional
+      - name: Run unit tests
+        run: composer project:test:unit
 
-      - name: Run Functional Tests PHP8.5
-        run: nix-shell --arg phpVersion \"php85\" --pure --run project-test-functional
+      - name: Run functional tests
+        run: export typo3DatabaseDriver=pdo_sqlite && composer project:test:functional
 
diff --git a/Build/.php-cs-fixer.dist.php b/Build/.php-cs-fixer.dist.php
index 58818f6f..aecc017b 100644
--- a/Build/.php-cs-fixer.dist.php
+++ b/Build/.php-cs-fixer.dist.php
@@ -2,62 +2,497 @@
 
 declare(strict_types=1);
 
-if (PHP_SAPI !== 'cli') {
-    die('This script supports command line usage only. Please check your command.');
+use ErickSkrauch\PhpCsFixer\Fixer\Whitespace\BlankLineBeforeReturnFixer;
+use ErickSkrauch\PhpCsFixer\Fixer\Whitespace\MultilineIfStatementBracesFixer;
+use ErickSkrauch\PhpCsFixer\Fixers as ErickSkrauchFixersAlias;
+use PhpCsFixer\Config;
+use PhpCsFixer\Finder;
+use PhpCsFixer\Fixer\Alias\MbStrFunctionsFixer;
+use PhpCsFixer\Fixer\Alias\ModernizeStrposFixer;
+use PhpCsFixer\Fixer\Alias\NoAliasFunctionsFixer;
+use PhpCsFixer\Fixer\ArrayNotation\ArraySyntaxFixer;
+use PhpCsFixer\Fixer\ArrayNotation\NoMultilineWhitespaceAroundDoubleArrowFixer;
+use PhpCsFixer\Fixer\ArrayNotation\NoWhitespaceBeforeCommaInArrayFixer;
+use PhpCsFixer\Fixer\ArrayNotation\NoWhitespaceInEmptyArrayFixer;
+use PhpCsFixer\Fixer\ArrayNotation\NormalizeIndexBraceFixer;
+use PhpCsFixer\Fixer\ArrayNotation\ReturnToYieldFromFixer;
+use PhpCsFixer\Fixer\ArrayNotation\TrimArraySpacesFixer;
+use PhpCsFixer\Fixer\ArrayNotation\WhitespaceAfterCommaInArrayFixer;
+use PhpCsFixer\Fixer\ArrayNotation\YieldFromArrayToYieldsFixer;
+use PhpCsFixer\Fixer\AttributeNotation\AttributeBlockNoSpacesFixer;
+use PhpCsFixer\Fixer\AttributeNotation\AttributeEmptyParenthesesFixer;
+use PhpCsFixer\Fixer\AttributeNotation\OrderedAttributesFixer;
+use PhpCsFixer\Fixer\Basic\NoMultipleStatementsPerLineFixer;
+use PhpCsFixer\Fixer\Basic\NoTrailingCommaInSinglelineFixer;
+use PhpCsFixer\Fixer\Basic\NonPrintableCharacterFixer;
+use PhpCsFixer\Fixer\Basic\NumericLiteralSeparatorFixer;
+use PhpCsFixer\Fixer\Casing\ClassReferenceNameCasingFixer;
+use PhpCsFixer\Fixer\Casing\NativeFunctionCasingFixer;
+use PhpCsFixer\Fixer\Casing\NativeTypeDeclarationCasingFixer;
+use PhpCsFixer\Fixer\CastNotation\CastSpacesFixer;
+use PhpCsFixer\Fixer\CastNotation\ModernizeTypesCastingFixer;
+use PhpCsFixer\Fixer\CastNotation\NoUnsetCastFixer;
+use PhpCsFixer\Fixer\ClassNotation\ClassAttributesSeparationFixer;
+use PhpCsFixer\Fixer\ClassNotation\NoNullPropertyInitializationFixer;
+use PhpCsFixer\Fixer\ClassNotation\NoRedundantReadonlyPropertyFixer;
+use PhpCsFixer\Fixer\ClassNotation\OrderedClassElementsFixer;
+use PhpCsFixer\Fixer\ClassNotation\OrderedInterfacesFixer;
+use PhpCsFixer\Fixer\ClassNotation\OrderedTraitsFixer;
+use PhpCsFixer\Fixer\ClassNotation\OrderedTypesFixer;
+use PhpCsFixer\Fixer\ClassNotation\SelfAccessorFixer;
+use PhpCsFixer\Fixer\ClassNotation\StaticPrivateMethodFixer;
+use PhpCsFixer\Fixer\ClassNotation\StringableForToStringFixer;
+use PhpCsFixer\Fixer\Comment\HeaderCommentFixer;
+use PhpCsFixer\Fixer\Comment\MultilineCommentOpeningClosingFixer;
+use PhpCsFixer\Fixer\Comment\NoEmptyCommentFixer;
+use PhpCsFixer\Fixer\Comment\SingleLineCommentStyleFixer;
+use PhpCsFixer\Fixer\ControlStructure\NoSuperfluousElseifFixer;
+use PhpCsFixer\Fixer\ControlStructure\NoUnneededBracesFixer;
+use PhpCsFixer\Fixer\ControlStructure\NoUnneededControlParenthesesFixer;
+use PhpCsFixer\Fixer\ControlStructure\NoUselessElseFixer;
+use PhpCsFixer\Fixer\ControlStructure\SimplifiedIfReturnFixer;
+use PhpCsFixer\Fixer\ControlStructure\TrailingCommaInMultilineFixer;
+use PhpCsFixer\Fixer\FunctionNotation\DateTimeCreateFromFormatCallFixer;
+use PhpCsFixer\Fixer\FunctionNotation\MethodArgumentSpaceFixer;
+use PhpCsFixer\Fixer\FunctionNotation\MultilinePromotedPropertiesFixer;
+use PhpCsFixer\Fixer\FunctionNotation\NoUnreachableDefaultArgumentValueFixer;
+use PhpCsFixer\Fixer\FunctionNotation\NoUselessPrintfFixer;
+use PhpCsFixer\Fixer\FunctionNotation\NoUselessSprintfFixer;
+use PhpCsFixer\Fixer\FunctionNotation\NullableTypeDeclarationForDefaultNullValueFixer;
+use PhpCsFixer\Fixer\FunctionNotation\PhpdocToParamTypeFixer;
+use PhpCsFixer\Fixer\FunctionNotation\PhpdocToPropertyTypeFixer;
+use PhpCsFixer\Fixer\FunctionNotation\PhpdocToReturnTypeFixer;
+use PhpCsFixer\Fixer\FunctionNotation\RegularCallableCallFixer;
+use PhpCsFixer\Fixer\FunctionNotation\StaticLambdaFixer;
+use PhpCsFixer\Fixer\FunctionNotation\VoidReturnFixer;
+use PhpCsFixer\Fixer\Import\FullyQualifiedStrictTypesFixer;
+use PhpCsFixer\Fixer\Import\GlobalNamespaceImportFixer;
+use PhpCsFixer\Fixer\Import\NoUnneededImportAliasFixer;
+use PhpCsFixer\Fixer\Import\NoUnusedImportsFixer;
+use PhpCsFixer\Fixer\Import\OrderedImportsFixer;
+use PhpCsFixer\Fixer\LanguageConstruct\ClassKeywordFixer;
+use PhpCsFixer\Fixer\LanguageConstruct\CombineConsecutiveIssetsFixer;
+use PhpCsFixer\Fixer\LanguageConstruct\CombineConsecutiveUnsetsFixer;
+use PhpCsFixer\Fixer\LanguageConstruct\NullableTypeDeclarationFixer;
+use PhpCsFixer\Fixer\LanguageConstruct\SingleSpaceAroundConstructFixer;
+use PhpCsFixer\Fixer\ListNotation\ListSyntaxFixer;
+use PhpCsFixer\Fixer\NamespaceNotation\BlankLinesBeforeNamespaceFixer;
+use PhpCsFixer\Fixer\Naming\NoHomoglyphNamesFixer;
+use PhpCsFixer\Fixer\Operator\ConcatSpaceFixer;
+use PhpCsFixer\Fixer\Operator\IncrementStyleFixer;
+use PhpCsFixer\Fixer\Operator\LongToShorthandOperatorFixer;
+use PhpCsFixer\Fixer\Operator\NewWithParenthesesFixer;
+use PhpCsFixer\Fixer\Operator\NoUselessConcatOperatorFixer;
+use PhpCsFixer\Fixer\Operator\ObjectOperatorWithoutWhitespaceFixer;
+use PhpCsFixer\Fixer\Operator\OperatorLinebreakFixer;
+use PhpCsFixer\Fixer\Operator\StandardizeIncrementFixer;
+use PhpCsFixer\Fixer\Operator\TernaryOperatorSpacesFixer;
+use PhpCsFixer\Fixer\Operator\TernaryToElvisOperatorFixer;
+use PhpCsFixer\Fixer\Operator\TernaryToNullCoalescingFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitConstructFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitDataProviderMethodOrderFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitDataProviderReturnTypeFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitDataProviderStaticFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitDedicateAssertFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitDedicateAssertInternalTypeFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitFqcnAnnotationFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitMethodCasingFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitMockFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitMockShortWillReturnFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitNamespacedFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitNoExpectationAnnotationFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitSetUpTearDownVisibilityFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitTestAnnotationFixer;
+use PhpCsFixer\Fixer\PhpUnit\PhpUnitTestCaseStaticMethodCallsFixer;
+use PhpCsFixer\Fixer\Phpdoc\NoBlankLinesAfterPhpdocFixer;
+use PhpCsFixer\Fixer\Phpdoc\NoEmptyPhpdocFixer;
+use PhpCsFixer\Fixer\Phpdoc\NoSuperfluousPhpdocTagsFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocAlignFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocIndentFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocLineSpanFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocNoAccessFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocNoDuplicateTypesFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocOrderByValueFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocOrderFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocParamOrderFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocScalarFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocSeparationFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocToCommentFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocTrimConsecutiveBlankLineSeparationFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocTrimFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocTypesFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocTypesOrderFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocVarAnnotationCorrectOrderFixer;
+use PhpCsFixer\Fixer\Phpdoc\PhpdocVarWithoutNameFixer;
+use PhpCsFixer\Fixer\ReturnNotation\NoUselessReturnFixer;
+use PhpCsFixer\Fixer\ReturnNotation\ReturnAssignmentFixer;
+use PhpCsFixer\Fixer\Semicolon\MultilineWhitespaceBeforeSemicolonsFixer;
+use PhpCsFixer\Fixer\Semicolon\NoEmptyStatementFixer;
+use PhpCsFixer\Fixer\Semicolon\NoSinglelineWhitespaceBeforeSemicolonsFixer;
+use PhpCsFixer\Fixer\Semicolon\SemicolonAfterInstructionFixer;
+use PhpCsFixer\Fixer\Strict\DeclareStrictTypesFixer;
+use PhpCsFixer\Fixer\StringNotation\NoTrailingWhitespaceInStringFixer;
+use PhpCsFixer\Fixer\StringNotation\SingleQuoteFixer;
+use PhpCsFixer\Fixer\StringNotation\StringImplicitBackslashesFixer;
+use PhpCsFixer\Fixer\StringNotation\StringLengthToEmptyFixer;
+use PhpCsFixer\Fixer\Whitespace\ArrayIndentationFixer;
+use PhpCsFixer\Fixer\Whitespace\CompactNullableTypeDeclarationFixer;
+use PhpCsFixer\Fixer\Whitespace\MethodChainingIndentationFixer;
+use PhpCsFixer\Fixer\Whitespace\NoExtraBlankLinesFixer;
+use PhpCsFixer\Fixer\Whitespace\NoSpacesAroundOffsetFixer;
+use PhpCsFixer\Fixer\Whitespace\StatementIndentationFixer;
+use PhpCsFixer\Fixer\Whitespace\TypeDeclarationSpacesFixer;
+use PhpCsFixer\Fixer\Whitespace\TypesSpacesFixer;
+use PhpCsFixer\Preg;
+use PhpCsFixer\Runner\Parallel\ParallelConfigFactory;
+use PhpCsFixerCustomFixers\Fixer\CommentSurroundedBySpacesFixer;
+use PhpCsFixerCustomFixers\Fixer\MultilineCommentOpeningClosingAloneFixer;
+use PhpCsFixerCustomFixers\Fixer\NoCommentedOutCodeFixer;
+use PhpCsFixerCustomFixers\Fixer\NoUselessDirnameCallFixer;
+use PhpCsFixerCustomFixers\Fixer\NoUselessParenthesisFixer;
+use PhpCsFixerCustomFixers\Fixer\NoUselessStrlenFixer;
+use PhpCsFixerCustomFixers\Fixer\PhpdocNoIncorrectVarAnnotationFixer;
+use PhpCsFixerCustomFixers\Fixer\PhpdocNoSuperfluousParamFixer;
+use PhpCsFixerCustomFixers\Fixer\PhpdocParamTypeFixer;
+use PhpCsFixerCustomFixers\Fixer\PhpdocTypesCommaSpacesFixer;
+use PhpCsFixerCustomFixers\Fixer\PhpdocTypesTrimFixer;
+use PhpCsFixerCustomFixers\Fixer\PromotedConstructorPropertyFixer;
+use PhpCsFixerCustomFixers\Fixer\SingleSpaceAfterStatementFixer;
+use PhpCsFixerCustomFixers\Fixer\SingleSpaceBeforeStatementFixer;
+use PhpCsFixerCustomFixers\Fixers as PhpCsFixerCustomFixersAlias;
+
+/**
+ * Transforms a given class to php-cs-fixer rule name.
+ * That way we can use auto completion, phpstan, etc.
+ *
+ * @param class-string $className
+ * @param bool $keepVendor Set to true for custom fixers.
+ */
+function transform(string $className, bool $keepVendor = false): string
+{
+    $nameParts = explode('\\', $className);
+    $name = mb_substr(end($nameParts), 0, -mb_strlen('Fixer'));
+    $name = mb_strtolower(Preg::replace(
+        '/(?<!^)((?=[\p{Lu}][^\p{Lu}])|(?<![\p{Lu}])(?=[\p{Lu}]))/',
+        '_',
+        $name
+    ));
+
+    if ($keepVendor) {
+        $name = reset($nameParts) . '/' . $name;
+    }
+
+    return $name;
 }
 
-return (new \PhpCsFixer\Config())
+return (new Config())
+    ->setParallelConfig(ParallelConfigFactory::detect())
+    ->setRiskyAllowed(true)
     ->setFinder(
-        (new PhpCsFixer\Finder())
+        (new Finder())
+            ->ignoreDotFiles(false)
             ->ignoreVCSIgnored(true)
             ->in(__DIR__ . '/../')
+            ->exclude(
+                [
+                    '.build/',
+                    'var/',
+                ]
+            )
     )
-    ->setRiskyAllowed(true)
+    ->registerCustomFixers(new PhpCsFixerCustomFixersAlias())
+    ->registerCustomFixers(new ErickSkrauchFixersAlias())
     ->setRules([
-        '@DoctrineAnnotation' => true,
-        '@PER-CS' => true,
-        'array_syntax' => ['syntax' => 'short'],
-        'cast_spaces' => ['space' => 'none'],
-        'concat_space' => ['spacing' => 'one'],
-        'declare_equal_normalize' => ['space' => 'none'],
-        'declare_parentheses' => true,
-        'dir_constant' => true,
-        'function_to_constant' => ['functions' => ['get_called_class', 'get_class', 'get_class_this', 'php_sapi_name', 'phpversion', 'pi']],
-        'modernize_strpos' => true,
-        'modernize_types_casting' => true,
-        'native_function_casing' => true,
-        'no_alias_functions' => true,
-        'no_blank_lines_after_phpdoc' => true,
-        'no_empty_phpdoc' => true,
-        'no_empty_statement' => true,
-        'no_extra_blank_lines' => true,
-        'no_leading_namespace_whitespace' => true,
-        'no_null_property_initialization' => true,
-        'no_short_bool_cast' => true,
-        'no_singleline_whitespace_before_semicolons' => true,
-        'no_superfluous_elseif' => true,
-        'no_trailing_comma_in_singleline' => true,
-        'no_unneeded_control_parentheses' => true,
-        'no_unused_imports' => true,
-        'no_useless_else' => true,
-        'no_useless_nullsafe_operator' => true,
-        'ordered_imports' => ['imports_order' => ['class', 'function', 'const'], 'sort_algorithm' => 'alpha'],
-        'php_unit_construct' => ['assertions' => ['assertEquals', 'assertSame', 'assertNotEquals', 'assertNotSame']],
-        'php_unit_mock_short_will_return' => true,
-        'php_unit_test_case_static_method_calls' => ['call_type' => 'self'],
-        'phpdoc_no_access' => true,
-        'phpdoc_no_empty_return' => true,
-        'phpdoc_no_package' => true,
-        'phpdoc_scalar' => true,
-        'phpdoc_trim' => true,
-        'phpdoc_types' => true,
-        'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
-        'return_type_declaration' => ['space_before' => 'none'],
-        'single_quote' => true,
-        'single_space_around_construct' => true,
-        'single_line_comment_style' => ['comment_types' => ['hash']],
-        'trailing_comma_in_multiline' => ['elements' => ['arrays']],
-        'type_declaration_spaces' => true,
-        'whitespace_after_comma_in_array' => ['ensure_single_space' => true],
-        'yoda_style' => ['equal' => false, 'identical' => false, 'less_and_greater' => false],
-    ]);
+        '@PSR12' => true,
+        transform(ArrayIndentationFixer::class) => true,
+        transform(ArraySyntaxFixer::class) => [
+            'syntax' => 'short',
+        ],
+        transform(AttributeBlockNoSpacesFixer::class) => true,
+        transform(AttributeEmptyParenthesesFixer::class) => true,
+        transform(BlankLinesBeforeNamespaceFixer::class) => true,
+        transform(CastSpacesFixer::class) => true,
+        transform(ClassAttributesSeparationFixer::class) => [
+            'elements' => [
+                'const' => 'one',
+                'method' => 'one',
+                'property' => 'one',
+                'trait_import' => 'one',
+            ],
+        ],
+        transform(ClassKeywordFixer::class) => true,
+        transform(ClassReferenceNameCasingFixer::class) => true,
+        transform(CombineConsecutiveIssetsFixer::class) => true,
+        transform(CombineConsecutiveUnsetsFixer::class) => true,
+        transform(CompactNullableTypeDeclarationFixer::class) => true,
+        transform(ConcatSpaceFixer::class) => [
+            'spacing' => 'one',
+        ],
+        transform(DateTimeCreateFromFormatCallFixer::class) => true,
+        transform(DeclareStrictTypesFixer::class) => true,
+        transform(FullyQualifiedStrictTypesFixer::class) => [
+            'import_symbols' => true,
+            'leading_backslash_in_global_namespace' => true,
+        ],
+        transform(GlobalNamespaceImportFixer::class) => true,
+        transform(HeaderCommentFixer::class) => [
+            'header' => '',
+        ],
+        transform(IncrementStyleFixer::class) => [
+            'style' => 'post',
+        ],
+        transform(ListSyntaxFixer::class) => true,
+        transform(LongToShorthandOperatorFixer::class) => true,
+        transform(MbStrFunctionsFixer::class) => true,
+        transform(MethodArgumentSpaceFixer::class) => [
+            'on_multiline' => 'ensure_fully_multiline',
+            'attribute_placement' => 'standalone',
+        ],
+        transform(MethodChainingIndentationFixer::class) => true,
+        transform(ModernizeStrposFixer::class) => [
+            'modernize_stripos' => true,
+        ],
+        transform(ModernizeTypesCastingFixer::class) => true,
+        transform(MultilineCommentOpeningClosingFixer::class) => true,
+        transform(MultilinePromotedPropertiesFixer::class) => true,
+        transform(MultilineWhitespaceBeforeSemicolonsFixer::class) => [
+            'strategy' => 'new_line_for_chained_calls',
+        ],
+        transform(NativeFunctionCasingFixer::class) => true,
+        transform(NativeTypeDeclarationCasingFixer::class) => true,
+        transform(NewWithParenthesesFixer::class) => [
+            'anonymous_class' => false,
+            'named_class' => true,
+        ],
+        transform(NoAliasFunctionsFixer::class) => true,
+        transform(NoBlankLinesAfterPhpdocFixer::class) => true,
+        transform(NoEmptyCommentFixer::class) => true,
+        transform(NoEmptyPhpdocFixer::class) => true,
+        transform(NoEmptyStatementFixer::class) => true,
+        transform(NoExtraBlankLinesFixer::class) => [
+            'tokens' => [
+                'attribute',
+                'break',
+                'case',
+                'continue',
+                'curly_brace_block',
+                'default',
+                'extra',
+                'parenthesis_brace_block',
+                'return',
+                'square_brace_block',
+                'switch',
+                'throw',
+                'use',
+            ],
+        ],
+        transform(NoHomoglyphNamesFixer::class) => true,
+        transform(NoMultilineWhitespaceAroundDoubleArrowFixer::class) => true,
+        transform(NoMultipleStatementsPerLineFixer::class) => true,
+        transform(NoNullPropertyInitializationFixer::class) => true,
+        transform(NoRedundantReadonlyPropertyFixer::class) => true,
+        transform(NoSinglelineWhitespaceBeforeSemicolonsFixer::class) => true,
+        transform(NoSpacesAroundOffsetFixer::class) => true,
+        transform(NoSuperfluousElseifFixer::class) => true,
+        transform(NoSuperfluousPhpdocTagsFixer::class) => [
+            'allow_mixed' => true,
+        ],
+        transform(NoTrailingCommaInSinglelineFixer::class) => true,
+        transform(NoTrailingWhitespaceInStringFixer::class) => true,
+        transform(NoUnneededBracesFixer::class) => true,
+        transform(NoUnneededControlParenthesesFixer::class) => true,
+        transform(NoUnneededImportAliasFixer::class) => true,
+        transform(NoUnreachableDefaultArgumentValueFixer::class) => true,
+        transform(NoUnsetCastFixer::class) => true,
+        transform(NoUnusedImportsFixer::class) => true,
+        transform(NoUselessConcatOperatorFixer::class) => true,
+        transform(NoUselessElseFixer::class) => true,
+        transform(NoUselessPrintfFixer::class) => true,
+        transform(NoUselessReturnFixer::class) => true,
+        transform(NoUselessSprintfFixer::class) => true,
+        transform(NoWhitespaceBeforeCommaInArrayFixer::class) => true,
+        transform(NoWhitespaceInEmptyArrayFixer::class) => true,
+        transform(NonPrintableCharacterFixer::class) => true,
+        transform(NormalizeIndexBraceFixer::class) => true,
+        transform(NullableTypeDeclarationFixer::class) => true,
+        transform(NullableTypeDeclarationForDefaultNullValueFixer::class) => true,
+        transform(NumericLiteralSeparatorFixer::class) => [
+            'strategy' => NumericLiteralSeparatorFixer::STRATEGY_NO_SEPARATOR,
+        ],
+        transform(ObjectOperatorWithoutWhitespaceFixer::class) => true,
+        transform(OperatorLinebreakFixer::class) => [
+            'position' => 'beginning', ],
+        transform(OrderedAttributesFixer::class) => [
+            'order' => [
+                'alpha',
+            ],
+        ],
+        transform(OrderedClassElementsFixer::class) => [
+            'order' => [
+                'use_trait',
+                'case',
+                'constant_public',
+                'constant_protected',
+                'constant_private',
+                'property_public',
+                'property_protected',
+                'property_private',
+                'construct',
+                'destruct',
+                'magic',
+                'phpunit',
+                'method_public',
+                'method_protected',
+                'method_private',
+            ],
+            'case_sensitive' => true,
+        ],
+        transform(OrderedImportsFixer::class) => [
+            'sort_algorithm' => 'alpha',
+            'case_sensitive' => true,
+            'imports_order' => [
+                'class',
+                'const',
+                'function',
+            ],
+        ],
+        transform(OrderedInterfacesFixer::class) => [
+            'case_sensitive' => true,
+        ],
+        transform(OrderedTraitsFixer::class) => [
+            'case_sensitive' => true,
+        ],
+        transform(OrderedTypesFixer::class) => [
+            'case_sensitive' => true,
+        ],
+        transform(PhpUnitConstructFixer::class) => true,
+        transform(PhpUnitDataProviderMethodOrderFixer::class) => true,
+        transform(PhpUnitDataProviderReturnTypeFixer::class) => true,
+        transform(PhpUnitDataProviderStaticFixer::class) => [
+            'force' => true,
+        ],
+        transform(PhpUnitDedicateAssertFixer::class) => true,
+        transform(PhpUnitDedicateAssertInternalTypeFixer::class) => true,
+        transform(PhpUnitFqcnAnnotationFixer::class) => true,
+        transform(PhpUnitMethodCasingFixer::class) => true,
+        transform(PhpUnitMockFixer::class) => true,
+        transform(PhpUnitMockShortWillReturnFixer::class) => true,
+        transform(PhpUnitNamespacedFixer::class) => true,
+        transform(PhpUnitNoExpectationAnnotationFixer::class) => true,
+        transform(PhpUnitSetUpTearDownVisibilityFixer::class) => true,
+        transform(PhpUnitTestAnnotationFixer::class) => [
+            'style' => 'annotation',
+        ],
+        transform(PhpUnitTestCaseStaticMethodCallsFixer::class) => [
+            'call_type' => 'self',
+            // TODO: phpunit/phpunit:11.0 Update this configuration to match actual PHPUnit version
+            'target' => '10.0',
+        ],
+        transform(PhpdocAlignFixer::class) => [
+            'align' => 'left',
+        ],
+        transform(PhpdocIndentFixer::class) => true,
+        transform(PhpdocLineSpanFixer::class) => true,
+        transform(PhpdocNoAccessFixer::class) => true,
+        transform(PhpdocNoDuplicateTypesFixer::class) => true,
+        transform(PhpdocOrderByValueFixer::class) => [
+            'annotations' => [
+                'covers', 'throws',
+            ],
+        ],
+        transform(PhpdocOrderFixer::class) => true,
+        transform(PhpdocParamOrderFixer::class) => true,
+        transform(PhpdocScalarFixer::class) => [
+            'types' => [
+                'boolean',
+                'callback',
+                'double',
+                'integer',
+                'never-return',
+                'never-returns',
+                'no-return',
+                'real',
+                'str',
+            ],
+        ],
+        transform(PhpdocSeparationFixer::class) => [
+            'groups' => [
+                ['see'],
+                ['throw'],
+                ['param'],
+                ['return'],
+            ],
+        ],
+        transform(PhpdocToCommentFixer::class) => true,
+        transform(PhpdocToParamTypeFixer::class) => true,
+        transform(PhpdocToPropertyTypeFixer::class) => true,
+        transform(PhpdocToReturnTypeFixer::class) => true,
+        transform(PhpdocTrimConsecutiveBlankLineSeparationFixer::class) => true,
+        transform(PhpdocTrimFixer::class) => true,
+        transform(PhpdocTypesFixer::class) => true,
+        transform(PhpdocTypesOrderFixer::class) => [
+            'case_sensitive' => true,
+        ],
+        transform(PhpdocVarAnnotationCorrectOrderFixer::class) => true,
+        transform(PhpdocVarWithoutNameFixer::class) => true,
+        transform(RegularCallableCallFixer::class) => true,
+        transform(ReturnAssignmentFixer::class) => true,
+        transform(ReturnToYieldFromFixer::class) => true,
+        transform(SelfAccessorFixer::class) => true,
+        transform(SemicolonAfterInstructionFixer::class) => true,
+        transform(SimplifiedIfReturnFixer::class) => true,
+        transform(SingleLineCommentStyleFixer::class) => true,
+        transform(SingleQuoteFixer::class) => true,
+        transform(SingleSpaceAroundConstructFixer::class) => true,
+        transform(StandardizeIncrementFixer::class) => true,
+        transform(StatementIndentationFixer::class) => true,
+        transform(StaticLambdaFixer::class) => true,
+        transform(StaticPrivateMethodFixer::class) => true,
+        transform(StringableForToStringFixer::class) => true,
+        transform(StringImplicitBackslashesFixer::class) => [
+            'single_quoted' => 'ignore',
+        ],
+        transform(StringLengthToEmptyFixer::class) => true,
+        transform(TernaryOperatorSpacesFixer::class) => true,
+        transform(TernaryToElvisOperatorFixer::class) => true,
+        transform(TernaryToNullCoalescingFixer::class) => true,
+        transform(TrailingCommaInMultilineFixer::class) => true,
+        transform(TrimArraySpacesFixer::class) => true,
+        transform(TypeDeclarationSpacesFixer::class) => [
+            'elements' => [
+                'constant',
+                'function',
+                'property',
+            ],
+        ],
+        transform(TypesSpacesFixer::class) => true,
+        transform(VoidReturnFixer::class) => true,
+        transform(WhitespaceAfterCommaInArrayFixer::class) => [
+            'ensure_single_space' => true,
+        ],
+        transform(YieldFromArrayToYieldsFixer::class) => true,
+
+        // Part of PhpCsFixerCustomFixers
+        CommentSurroundedBySpacesFixer::name() => true,
+        MultilineCommentOpeningClosingAloneFixer::name() => true,
+        NoCommentedOutCodeFixer::name() => true,
+        NoUselessDirnameCallFixer::name() => true,
+        NoUselessParenthesisFixer::name() => true,
+        NoUselessStrlenFixer::name() => true,
+        PhpdocNoIncorrectVarAnnotationFixer::name() => true,
+        PhpdocNoSuperfluousParamFixer::name() => true,
+        PhpdocParamTypeFixer::name() => true,
+        PhpdocTypesCommaSpacesFixer::name() => true,
+        PhpdocTypesTrimFixer::name() => true,
+        // Doesn't work with some Codeception files due to miss match with underlying TYPO3 classes.
+        // PromotedConstructorPropertyFixer::name() => true,
+        SingleSpaceAfterStatementFixer::name() => [
+            'allow_linebreak' => true,
+        ],
+        SingleSpaceBeforeStatementFixer::name() => true,
+
+        // Part of ErickSkrauch\PhpCsFixer
+        transform(BlankLineBeforeReturnFixer::class, true) => true,
+        transform(MultilineIfStatementBracesFixer::class, true) => true,
+    ])
+;
diff --git a/Build/UnitTests.xml b/Build/UnitTests.xml
deleted file mode 100644
index 9825de0b..00000000
--- a/Build/UnitTests.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.1/phpunit.xsd"
-         backupGlobals="true"
-         beStrictAboutTestsThatDoNotTestAnything="false"
-         bootstrap="../.build/vendor/typo3/testing-framework/Resources/Core/Build/UnitTestsBootstrap.php"
-         cacheResult="false"
-         colors="true"
-         failOnDeprecation="true"
-         failOnWarning="true"
-         failOnRisky="true"
-         processIsolation="false"
-         requireCoverageMetadata="false"
-         stopOnError="false"
-         stopOnFailure="false"
-         stopOnIncomplete="false"
-         stopOnSkipped="false"
->
-  <coverage/>
-  <testsuites>
-    <testsuite name="Cart Extension">
-      <directory>../Tests/Unit/</directory>
-    </testsuite>
-  </testsuites>
-  <source>
-    <include>
-      <directory suffix=".php">../Classes/</directory>
-    </include>
-    <exclude>
-      <directory suffix=".php">../Classes/Widgets</directory>
-    </exclude>
-  </source>
-</phpunit>
diff --git a/Build/UnitTestsBootstrap.php b/Build/UnitTestsBootstrap.php
index d2cd5570..bcae7efe 100644
--- a/Build/UnitTestsBootstrap.php
+++ b/Build/UnitTestsBootstrap.php
@@ -1,5 +1,20 @@
 <?php
 
+declare(strict_types=1);
+
+use TYPO3\CMS\Core\Cache\Backend\NullBackend;
+use TYPO3\CMS\Core\Cache\Frontend\PhpFrontend;
+use TYPO3\CMS\Core\Configuration\ConfigurationManager;
+use TYPO3\CMS\Core\Core\Bootstrap;
+use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Core\SystemEnvironmentBuilder;
+use TYPO3\CMS\Core\Package\Cache\PackageCacheInterface;
+use TYPO3\CMS\Core\Package\PackageManager;
+use TYPO3\CMS\Core\Package\UnitTestPackageManager;
+use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\TestingFramework\Core\Testbase;
+
 /*
  * This file is part of the TYPO3 CMS project.
  *
@@ -12,7 +27,6 @@
  *
  * The TYPO3 project - inspiring people to share!
  */
-
 /**
  * Boilerplate for a unit test phpunit boostrap file.
  *
@@ -27,8 +41,8 @@
  * according script within TYPO3 core's Build/Scripts directory and
  * adapt to extensions needs.
  */
-(static function () {
-    $testbase = new \TYPO3\TestingFramework\Core\Testbase();
+(static function (): void {
+    $testbase = new Testbase();
 
     // These if's are for core testing (package typo3/cms) only. cms-composer-installer does
     // not create the autoload-include.php file that sets these env vars and sets composer
@@ -46,40 +60,40 @@
 
     $testbase->defineSitePath();
 
-    $requestType = \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_BE | \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_CLI;
+    $requestType = SystemEnvironmentBuilder::REQUESTTYPE_BE | SystemEnvironmentBuilder::REQUESTTYPE_CLI;
     \TYPO3\TestingFramework\Core\SystemEnvironmentBuilder::run(0, $requestType);
 
-    $testbase->createDirectory(\TYPO3\CMS\Core\Core\Environment::getPublicPath() . '/typo3conf/ext');
-    $testbase->createDirectory(\TYPO3\CMS\Core\Core\Environment::getPublicPath() . '/typo3temp/assets');
-    $testbase->createDirectory(\TYPO3\CMS\Core\Core\Environment::getPublicPath() . '/typo3temp/var/tests');
-    $testbase->createDirectory(\TYPO3\CMS\Core\Core\Environment::getPublicPath() . '/typo3temp/var/transient');
+    $testbase->createDirectory(Environment::getPublicPath() . '/typo3conf/ext');
+    $testbase->createDirectory(Environment::getPublicPath() . '/typo3temp/assets');
+    $testbase->createDirectory(Environment::getPublicPath() . '/typo3temp/var/tests');
+    $testbase->createDirectory(Environment::getPublicPath() . '/typo3temp/var/transient');
 
     // Retrieve an instance of class loader and inject to core bootstrap
     $classLoader = require $testbase->getPackagesPath() . '/autoload.php';
-    \TYPO3\CMS\Core\Core\Bootstrap::initializeClassLoader($classLoader);
+    Bootstrap::initializeClassLoader($classLoader);
 
     // Initialize default TYPO3_CONF_VARS
-    $configurationManager = new \TYPO3\CMS\Core\Configuration\ConfigurationManager();
+    $configurationManager = new ConfigurationManager();
     $GLOBALS['TYPO3_CONF_VARS'] = $configurationManager->getDefaultConfiguration();
 
-    $cache = new \TYPO3\CMS\Core\Cache\Frontend\PhpFrontend(
+    $cache = new PhpFrontend(
         'core',
-        new \TYPO3\CMS\Core\Cache\Backend\NullBackend('production', [])
+        new NullBackend('production', [])
     );
 
     // Set all packages to active
-    if (interface_exists(\TYPO3\CMS\Core\Package\Cache\PackageCacheInterface::class)) {
-        $packageManager = \TYPO3\CMS\Core\Core\Bootstrap::createPackageManager(\TYPO3\CMS\Core\Package\UnitTestPackageManager::class, \TYPO3\CMS\Core\Core\Bootstrap::createPackageCache($cache));
+    if (interface_exists(PackageCacheInterface::class)) {
+        $packageManager = Bootstrap::createPackageManager(UnitTestPackageManager::class, Bootstrap::createPackageCache($cache));
     } else {
         // v10 compatibility layer
         // @deprecated Will be removed when v10 compat is dropped from testing-framework
-        $packageManager = \TYPO3\CMS\Core\Core\Bootstrap::createPackageManager(\TYPO3\CMS\Core\Package\UnitTestPackageManager::class, $cache);
+        $packageManager = Bootstrap::createPackageManager(UnitTestPackageManager::class, $cache);
     }
 
-    \TYPO3\CMS\Core\Utility\GeneralUtility::setSingletonInstance(\TYPO3\CMS\Core\Package\PackageManager::class, $packageManager);
-    \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::setPackageManager($packageManager);
+    GeneralUtility::setSingletonInstance(PackageManager::class, $packageManager);
+    ExtensionManagementUtility::setPackageManager($packageManager);
 
     $testbase->dumpClassLoadingInformation();
 
-    \TYPO3\CMS\Core\Utility\GeneralUtility::purgeInstances();
+    GeneralUtility::purgeInstances();
 })();
diff --git a/Build/phpstan-baseline.neon b/Build/phpstan-baseline.neon
index 3cfb689d..626acd8d 100644
--- a/Build/phpstan-baseline.neon
+++ b/Build/phpstan-baseline.neon
@@ -1,21 +1,5473 @@
 parameters:
 	ignoreErrors:
 		-
-			message: "#^Call to an undefined method Extcode\\\\Cart\\\\Service\\\\PaymentMethodsServiceInterface\\:\\:getConfigurationsForType\\(\\)\\.$#"
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SiteSets\\AbstractConfigurationLoader\:\:getConfigurationsForType\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SiteSets\\AbstractConfigurationLoader\:\:getCountryCodeFromPreset\(\) has parameter \$configuration with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SiteSets\\AbstractConfigurationLoader\:\:getServices\(\) has parameter \$configurations with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SiteSets\\AbstractConfigurationLoader\:\:getTypeZonesPluginSettings\(\) has parameter \$zoneSettings with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SiteSets\\AbstractConfigurationLoader\:\:getTypeZonesPluginSettings\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\SpecialOptionsLoaderInterface\:\:getSpecialOptions\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/SpecialOptionsLoaderInterface.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getConfigurationsForType\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getCountryCodeFromPreset\(\) has parameter \$configuration with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getServices\(\) has parameter \$configurations with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getServices\(\) has parameter \$services with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getServices\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getTypeZonesPluginSettings\(\) has parameter \$zoneSettings with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:getTypeZonesPluginSettings\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Parameter \#1 \$serviceKey of method Extcode\\Cart\\Domain\\Model\\Cart\\ServiceFactory\:\:getService\(\) expects int, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Parameter \#2 \$serviceConfig of method Extcode\\Cart\\Domain\\Model\\Cart\\ServiceFactory\:\:getService\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Possibly invalid array key type mixed\.$#'
+			identifier: offsetAccess.invalidOffset
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Configuration\\Loader\\TypoScript\\AbstractConfigurationLoader\:\:\$configurations type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\PaymentMethodsLoader\:\:getPaymentMethods\(\) should return array\<Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\> but returns array\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/PaymentMethodsLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\ShippingMethodsLoader\:\:getShippingMethods\(\) should return array\<Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\> but returns array\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/ShippingMethodsLoader.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Configuration\\Loader\\TypoScript\\SpecialOptionsLoader\:\:getSpecialOptions\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/SpecialOptionsLoader.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Parameter \#1 \$taxClassKey of method Extcode\\Cart\\Domain\\Model\\Cart\\TaxClassFactoryInterface\:\:getTaxClass\(\) expects int, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Parameter \#2 \$array of function array_key_exists expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Parameter \#2 \$taxClassValue of method Extcode\\Cart\\Domain\\Model\\Cart\\TaxClassFactoryInterface\:\:getTaxClass\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Possibly invalid array key type mixed\.$#'
+			identifier: offsetAccess.invalidOffset
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Configuration\\Loader\\TypoScript\\TaxClassLoader\:\:\$settings type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
+
+		-
+			message: '#^Parameter \#3 \$view of class Extcode\\Cart\\Event\\View\\ModifyViewEvent constructor expects TYPO3Fluid\\Fluid\\View\\ViewInterface, TYPO3\\CMS\\Core\\View\\ViewInterface given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/ActionController.php
+
+		-
+			message: '#^Cannot call method getPagePermsClause\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/ActionController.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 1
+			path: ../Classes/Controller/Backend/ActionController.php
+
+		-
+			message: '#^Parameter \#2 \$perms_clause of static method TYPO3\\CMS\\Backend\\Utility\\BackendUtility\:\:readPageAccess\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/ActionController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Backend\\ActionController\:\:\$pluginSettings type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/ActionController.php
+
+		-
+			message: '#^Binary operation "\." between ''attachment;…'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot call method getContents\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot call method getName\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot call method getOriginalResource\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot call method getSize\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot call method toArray\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Parameter \#1 \$array of function end expects array\|object, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Parameter \#1 \$content of method Psr\\Http\\Message\\StreamFactoryInterface\:\:createStream\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Parameter \#1 \$messageBody of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:addFlashMessage\(\) expects string, string\|null given\.$#'
+			identifier: argument.type
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+			path: ../Classes/Controller/Backend/Order/DocumentController.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Binary operation "\." between ''LLL\:EXT\:cart…'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''columns'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''config'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''group'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''icon'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''items'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''label'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''link'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''showLabel'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''status'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''title'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''tx_cart_domain_model_order_payment'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''tx_cart_domain_model_order_shipping'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''value'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:dispatchModifyButtonBarEvent\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:getLanguageService\(\) should return TYPO3\\CMS\\Core\\Localization\\LanguageService but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:getPaymentStatus\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:getShippingStatus\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:setDocHeader\(\) has parameter \$buttons with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$href of method TYPO3\\CMS\\Backend\\Template\\Components\\Buttons\\LinkButton\:\:setHref\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$identifier of method TYPO3\\CMS\\Core\\Imaging\\IconFactory\:\:getIcon\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$key of static method TYPO3\\CMS\\Extbase\\Utility\\LocalizationUtility\:\:translate\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$messageBody of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:addFlashMessage\(\) expects string, string\|null given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$queryResult of class TYPO3\\CMS\\Extbase\\Pagination\\QueryResultPaginator constructor expects TYPO3\\CMS\\Extbase\\Persistence\\QueryResultInterface, array\|TYPO3\\CMS\\Extbase\\Persistence\\QueryResultInterface given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$showLabelText of method TYPO3\\CMS\\Backend\\Template\\Components\\Buttons\\AbstractButton\:\:setShowLabelText\(\) expects bool, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#3 \$buttonGroup of method TYPO3\\CMS\\Backend\\Template\\Components\\ButtonBar\:\:addButton\(\) expects int, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Possibly invalid array key type mixed\.$#'
+			identifier: offsetAccess.invalidOffset
+			count: 2
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:\$searchArguments \(array\) does not accept mixed\.$#'
+			identifier: assign.propertyType
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Backend\\Order\\OrderController\:\:\$searchArguments type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Backend/Order/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$messageBody of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:addFlashMessage\(\) expects string, string\|null given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/PaymentController.php
+
+		-
+			message: '#^Parameter \#1 \$messageBody of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:addFlashMessage\(\) expects string, string\|null given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Backend/Order/ShippingController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:restoreCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Cart\\ActionController\:\:\$configurations type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Cart\\ActionController\:\:\$payments type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Cart\\ActionController\:\:\$shippings type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Controller\\Cart\\ActionController\:\:\$specials type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Cart/ActionController.php
+
+		-
+			message: '#^Binary operation "\." between ''billing_address_'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 2
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Binary operation "\." between ''shipping_address_'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 2
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 8
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Cannot access offset ''shippingSameAsBilling'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Cannot access offset ''steps'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 4
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 4
+			path: ../Classes/Controller/Cart/CartController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Cannot call method getId\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Cannot call method isPreset\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Parameter \#1 \$cartSettings of method Extcode\\Cart\\Utility\\CartUtility\:\:updateCountry\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Parameter \#1 \$payment of method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:setPayment\(\) expects Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Parameter \#1 \$shipping of method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:setShipping\(\) expects Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Controller/Cart/CountryController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Cannot call method getCode\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Cannot call method isUseable\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Parameter \#1 \$className of static method TYPO3\\CMS\\Core\\Utility\\GeneralUtility\:\:makeInstance\(\) expects class\-string\<object\>, string given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Parameter \#1 \$coupon of method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:addCoupon\(\) expects Extcode\\Cart\\Domain\\Model\\Cart\\CartCouponInterface, object given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Parameter \#1 \$couponCode of method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:removeCoupon\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Parameter \#1 \$messageBody of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:addFlashMessage\(\) expects string, string\|null given\.$#'
+			identifier: argument.type
+			count: 8
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Unable to resolve the template type T in call to static method TYPO3\\CMS\\Core\\Utility\\GeneralUtility\:\:makeInstance\(\)$#'
+			identifier: argument.templateType
+			count: 1
+			path: ../Classes/Controller/Cart/CouponController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/CurrencyController.php
+
+		-
+			message: '#^Cannot call method getAttribute\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/CurrencyController.php
+
+		-
+			message: '#^Cannot call method getPageType\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/CurrencyController.php
+
+		-
+			message: '#^Parameter \#1 \$cartSettings of method Extcode\\Cart\\Utility\\CurrencyUtility\:\:updateCurrency\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CurrencyController.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/CurrencyController.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Binary operation "\." between ''billing_address_'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 2
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Binary operation "\." between ''shipping_address_'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 2
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''fields'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''options'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
 			count: 1
 			path: ../Classes/Controller/Cart/OrderController.php
 
 		-
-			message: "#^Call to an undefined method Extcode\\\\Cart\\\\Domain\\\\Model\\\\Cart\\\\CartCouponInterface\\:\\:getTaxClass\\(\\)\\.$#"
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 6
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''redirects'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''success'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''url'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''validator'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset int on Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset string on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot call method getId\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 2
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Controller\\Cart\\OrderController\:\:setDynamicValidation\(\) has parameter \$validatorConf with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$uri of method TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ActionController\:\:redirectToUri\(\) expects Psr\\Http\\Message\\UriInterface\|string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Parameter \#1 \$validatorType of method TYPO3\\CMS\\Extbase\\Validation\\ValidatorResolver\:\:createValidator\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Parameter \#2 \$propertyName of method Extcode\\Cart\\Controller\\Cart\\OrderController\:\:setDynamicValidation\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Parameter \#2 \$validator of method TYPO3\\CMS\\Extbase\\Validation\\Validator\\AbstractGenericObjectValidator\:\:addPropertyValidator\(\) expects TYPO3\\CMS\\Extbase\\Validation\\Validator\\ValidatorInterface, TYPO3\\CMS\\Extbase\\Validation\\Validator\\ValidatorInterface\|null given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Parameter \#2 \$validatorOptions of method TYPO3\\CMS\\Extbase\\Validation\\ValidatorResolver\:\:createValidator\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Controller/Cart/OrderController.php
+
+		-
+			message: '#^Cannot access offset ''pid'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Controller/Cart/PaymentController.php
+
+		-
+			message: '#^Cannot call method getAttribute\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/PaymentController.php
+
+		-
+			message: '#^Cannot call method getPageType\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Controller/Cart/PaymentController.php
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+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Cannot call method removeBeVariants\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Cannot call method setQuantity\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Cannot call method toArray\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:addBeVariants\(\) has parameter \$newVariants with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:changeVariantsQuantity\(\) has parameter \$variantQuantityArray with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:getBeVariantById\(\) should return Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\|null but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:getBeVariants\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:getParentPrice\(\) should return float but returns float\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:getPriceCalculated\(\) should return float but returns float\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:removeBeVariants\(\) has parameter \$beVariantsArray with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:toArray\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Parameter \#1 \$newBeVariant of method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:addBeVariant\(\) expects Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Possibly invalid array key type mixed\.$#'
+			identifier: array.invalidKey
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant\:\:\$beVariants type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\:\:addBeVariants\(\) has parameter \$newVariants with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariantInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\:\:changeVariantsQuantity\(\) has parameter \$variantQuantityArray with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariantInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\:\:getBeVariants\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariantInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\:\:removeBeVariants\(\) has parameter \$beVariantsArray with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariantInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\:\:toArray\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/BeVariantInterface.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\*" between \-1 and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\+\=" between \(float\|int\) and mixed results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 3
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\+\=" between mixed and float results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 2
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\+\=" between mixed and mixed results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 2
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\-\=" between mixed and float results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 2
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Binary operation "\-\=" between mixed and mixed results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Cannot access offset ''tax'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 3
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Cannot access offset ''taxClassId'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 6
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:__construct\(\) has parameter \$taxClasses with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:changeProductsQuantity\(\) has parameter \$productQuantityArray with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getCouponTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getCoupons\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getDiscountTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getServiceTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getSpecials\(\) should return array\<Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\> but returns array\<Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\>\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getSubtotalTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getTaxClass\(\) should return Extcode\\Cart\\Domain\\Model\\Cart\\TaxClass but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getTaxClasses\(\) should return array\<Extcode\\Cart\\Domain\\Model\\Cart\\TaxClass\> but returns array\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:getTotalTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:removeProduct\(\) has parameter \$productVariantIds with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:removeProductByIds\(\) has parameter \$products with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:toArray\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:toJson\(\) should return string but returns string\|false\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Parameter \#1 \$key of function array_key_exists expects int\|string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Parameter \#1 \$newQuantity of method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:changeQuantity\(\) expects int, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Parameter \#1 \$variantsArray of method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:removeBeVariants\(\) expects array\<Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\>, array given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Parameter \#2 \$productVariantIds of method Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:removeProduct\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Possibly invalid array key type mixed\.$#'
+			identifier: offsetAccess.invalidOffset
+			count: 7
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Domain\\Model\\Cart\\Cart\:\:\$taxes type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Cart.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\CartCouponFix\:\:getTranslatedDiscount\(\) should return float but returns float\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponFix.php
+
+		-
+			message: '#^Binary operation "\*" between mixed and float results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Binary operation "\-\=" between float and mixed results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Cannot call method getGross\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\Cart\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Cannot call method getTaxes\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\Cart\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\CartCouponPercentage\:\:getTaxes\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\CartCouponPercentage\:\:getTranslatedDiscount\(\) should return float but returns float\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/CartCouponPercentage.php
+
+		-
+			message: '#^Binary operation "\*" between float and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 4
+			path: ../Classes/Domain/Model/Cart/Extra.php
+
+		-
+			message: '#^Cannot call method getCart\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 4
+			path: ../Classes/Domain/Model/Cart/Extra.php
+
+		-
+			message: '#^Cannot call method getTaxClass\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\ServiceInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 10
+			path: ../Classes/Domain/Model/Cart/Extra.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Extra\:\:getTax\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Extra.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Extra\:\:getTaxClassDistributionOverCart\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Extra.php
+
+		-
+			message: '#^Cannot access offset ''sku'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Cannot access offset ''title'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Cannot access offset ''value'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\FeVariant\:\:__construct\(\) has parameter \$variantData with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\FeVariant\:\:getVariantData\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Parameter \#1 \$string of function sha1 expects string, string\|false given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariant.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\FeVariantFactory\:\:create\(\) has parameter \$variantData with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariantFactory.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\FeVariantFactoryInterface\:\:create\(\) has parameter \$variantData with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariantFactoryInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\FeVariantInterface\:\:getVariantData\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/FeVariantInterface.php
+
+		-
+			message: '#^Cannot access offset ''price'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Cannot access offset ''quantity'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Cannot call method removeProduct\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\Cart\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Cannot call method setQuantity\(\) on Extcode\\Cart\\Domain\\Model\\Cart\\BeVariantInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:changeQuantities\(\) has parameter \$newQuantities with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:changeVariantsQuantity\(\) has parameter \$variantQuantity with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:getQuantityDiscountPrice\(\) should return float but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:getQuantityDiscounts\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:getTranslatedPrice\(\) should return float but returns float\|null\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:setQuantityDiscounts\(\) has parameter \$quantityDiscounts with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:toArray\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:toJson\(\) should return string but returns string\|false\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Domain\\Model\\Cart\\Product\:\:\$quantityDiscounts type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/Product.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:changeQuantities\(\) has parameter \$newQuantities with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/ProductInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:changeVariantsQuantity\(\) has parameter \$variantQuantity with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/ProductInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:getQuantityDiscounts\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/ProductInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Domain\\Model\\Cart\\ProductInterface\:\:setQuantityDiscounts\(\) has parameter \$quantityDiscounts with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Domain/Model/Cart/ProductInterface.php
+
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+			path: ../Classes/Domain/Repository/Order/ItemRepository.php
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+			path: ../Classes/Domain/Repository/Order/ProductAdditionalRepository.php
+
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+			path: ../Classes/Domain/Repository/Order/ProductAdditionalRepository.php
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+			identifier: missingType.generics
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+			path: ../Classes/Domain/Repository/Order/TaxClassRepository.php
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+		-
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+			path: ../Classes/Domain/Repository/Order/TransactionRepository.php
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+		-
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+
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+
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+			identifier: assign.propertyType
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+			path: ../Classes/Domain/Validator/OrderItemValidator.php
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+		-
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+			path: ../Classes/Event/Cart/UpdateCurrencyEvent.php
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+			path: ../Classes/Event/Cart/UpdateCurrencyEvent.php
+
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+			path: ../Classes/Event/Cart/UpdateCurrencyEventInterface.php
+
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+			identifier: missingType.iterableValue
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+			path: ../Classes/Event/Cart/UpdateCurrencyEventInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Event\\CheckProductAvailabilityEvent\:\:getQuantity\(\) has no return type specified\.$#'
+			identifier: missingType.return
+			count: 1
+			path: ../Classes/Event/CheckProductAvailabilityEvent.php
+
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+			path: ../Classes/Event/CheckProductAvailabilityEventInterface.php
+
+		-
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+			identifier: missingType.return
+			count: 1
+			path: ../Classes/Event/CheckProductAvailabilityEventInterface.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Event\\Form\\AddToCartFinisherEvent\:\:__construct\(\) has parameter \$formValues with no value type specified in iterable type array\.$#'
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+
+		-
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+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Event/Form/AddToCartFinisherEvent.php
+
+		-
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+			identifier: return.type
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+			path: ../Classes/Event/Form/AddToCartFinisherEvent.php
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+			identifier: assign.propertyType
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+			path: ../Classes/Event/Form/AddToCartFinisherEvent.php
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+			count: 1
+			path: ../Classes/Event/Form/AddToCartFinisherEvent.php
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+		-
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+			identifier: return.type
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+			path: ../Classes/Event/Mail/AttachmentEvent.php
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+			identifier: missingType.iterableValue
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+			path: ../Classes/Event/Mail/AttachmentEvent.php
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+			path: ../Classes/Event/Order/CreateEvent.php
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+			path: ../Classes/Event/Order/NumberGeneratorEvent.php
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+
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+
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+			identifier: missingType.iterableValue
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+			path: ../Classes/Event/Order/NumberGeneratorEvent.php
+
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+			path: ../Classes/Event/Order/NumberGeneratorEventInterface.php
+
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+			path: ../Classes/Event/Order/NumberGeneratorEventInterface.php
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+
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+
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+
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+
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+
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+
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+			path: ../Classes/Event/Order/PersistOrderEvent.php
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+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\CurrencyUtility\:\:updateCurrency\(\) has parameter \$cartSettings with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\CurrencyUtility\:\:updateCurrency\(\) has parameter \$pluginSettings with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Parameter \#1 \$cart of class Extcode\\Cart\\Event\\Cart\\UpdateCurrencyEvent constructor expects Extcode\\Cart\\Domain\\Model\\Cart\\Cart, Extcode\\Cart\\Domain\\Model\\Cart\\Cart\|null given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:restoreCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Parameter \#1 \$key of method Extcode\\Cart\\Service\\SessionHandler\:\:writeCart\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Parameter \#3 \$settings of class Extcode\\Cart\\Event\\Cart\\UpdateCurrencyEvent constructor expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Utility/CurrencyUtility.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 1
+			path: ../Classes/Utility/EvalPrice.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\EvalPrice\:\:evaluateFieldValue\(\) has parameter \$is_in with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Classes/Utility/EvalPrice.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\EvalPrice\:\:evaluateFieldValue\(\) has parameter \$set with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Classes/Utility/EvalPrice.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\EvalPrice\:\:evaluateFieldValue\(\) has parameter \$value with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Classes/Utility/EvalPrice.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\EvalPrice\:\:evaluateFieldValue\(\) should return string but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/Utility/EvalPrice.php
+
+		-
+			message: '#^Cannot access offset ''EXT'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Cannot access offset ''templateLayouts\.'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 3
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Cannot access offset non\-falsy\-string on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Cannot access offset string on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 1
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\TemplateLayout\:\:getAvailableTemplateLayouts\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Utility\\TemplateLayout\:\:getTemplateLayoutsFromTsConfig\(\) return type has no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Parameter \#2 \$string of static method TYPO3\\CMS\\Core\\Utility\\GeneralUtility\:\:trimExplode\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/Utility/TemplateLayout.php
+
+		-
+			message: '#^Binary operation "\." between ''\$GLOBALS\[\\''BE_USER\\''\]…'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Utility/Typo3GlobalsUtility.php
+
+		-
+			message: '#^Binary operation "\." between ''\$GLOBALS\[\\''TYPO3…'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Utility/Typo3GlobalsUtility.php
+
+		-
+			message: '#^Binary operation "\." between ''\$site was not of…'' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/Utility/Typo3GlobalsUtility.php
+
+		-
+			message: '#^Method Extcode\\Cart\\ViewHelpers\\AdditionalJsonViewHelper\:\:getValue\(\) has parameter \$data with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Classes/ViewHelpers/AdditionalJsonViewHelper.php
+
+		-
+			message: '#^Method Extcode\\Cart\\ViewHelpers\\AdditionalJsonViewHelper\:\:getValue\(\) should return string but returns mixed\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Classes/ViewHelpers/AdditionalJsonViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$data of method Extcode\\Cart\\ViewHelpers\\AdditionalJsonViewHelper\:\:getValue\(\) expects array, mixed given\.$#'
+			identifier: argument.type
+			count: 2
+			path: ../Classes/ViewHelpers/AdditionalJsonViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$key of method Extcode\\Cart\\ViewHelpers\\AdditionalJsonViewHelper\:\:getValue\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/AdditionalJsonViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$delim of static method TYPO3\\CMS\\Core\\Utility\\CsvUtility\:\:csvValues\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/CsvHeaderViewHelper.php
+
+		-
+			message: '#^Parameter \#3 \$quote of static method TYPO3\\CMS\\Core\\Utility\\CsvUtility\:\:csvValues\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/CsvHeaderViewHelper.php
+
+		-
+			message: '#^Cannot call method format\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getBillingAddress\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 4
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getFirstName\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getInvoiceDate\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getInvoiceNumber\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getLastName\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getOrderDate\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getOrderNumber\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getSalutation\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Cannot call method getTitle\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$row of static method TYPO3\\CMS\\Core\\Utility\\CsvUtility\:\:csvValues\(\) expects array\<string\>, array\<int, mixed\> given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$delim of static method TYPO3\\CMS\\Core\\Utility\\CsvUtility\:\:csvValues\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Parameter \#3 \$quote of static method TYPO3\\CMS\\Core\\Utility\\CsvUtility\:\:csvValues\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/CsvValuesViewHelper.php
+
+		-
+			message: '#^Binary operation "\." between ''\['' and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/ViewHelpers/FieldNameViewHelper.php
+
+		-
+			message: '#^Cannot call method getId\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/FieldNameViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$variant of method Extcode\\Cart\\ViewHelpers\\FieldNameViewHelper\:\:getVariantFieldName\(\) expects Extcode\\Cart\\Domain\\Model\\Cart\\BeVariant, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/FieldNameViewHelper.php
+
+		-
+			message: '#^Cannot call method isAvailable\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/Form/IsServiceAvailableAtPriceViewHelper.php
+
+		-
+			message: '#^Binary operation "\." between mixed and ''''\|''&nbsp;'' results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Binary operation "\." between string and mixed results in an error\.$#'
+			identifier: binaryOp.invalid
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Binary operation "/\=" between float and mixed results in an error\.$#'
+			identifier: assignOp.invalid
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Cannot access offset ''currency'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Cannot access offset ''format'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Cannot call method get\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Cannot cast mixed to float\.$#'
+			identifier: cast.double
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Cannot cast mixed to int\.$#'
+			identifier: cast.int
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$decimals of function number_format expects int, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Parameter \#3 \$decimal_separator of function number_format expects string\|null, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Parameter \#4 \$thousands_separator of function number_format expects string\|null, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Format/CurrencyViewHelper.php
+
+		-
+			message: '#^Call to method sanitize\(\) of deprecated class TYPO3\\CMS\\Frontend\\Resource\\FilePathSanitizer\.$#'
+			identifier: method.deprecatedClass
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Cannot access property \$tmpl on mixed\.$#'
+			identifier: property.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Cannot access property \$tt_track on mixed\.$#'
+			identifier: property.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 3
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$file of method TYPO3\\CMS\\Core\\Page\\PageRenderer\:\:addCssFile\(\) expects string\|TYPO3\\CMS\\Core\\SystemResource\\Type\\StaticResourceInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$file of method TYPO3\\CMS\\Core\\Page\\PageRenderer\:\:addJsFile\(\) expects string\|TYPO3\\CMS\\Core\\SystemResource\\Type\\StaticResourceInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$request of static method TYPO3\\CMS\\Core\\Http\\ApplicationType\:\:fromRequest\(\) expects Psr\\Http\\Message\\ServerRequestInterface, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Parameter \$filePathSanitizer of method Extcode\\Cart\\ViewHelpers\\IncludeFileViewHelper\:\:__construct\(\) has typehint with deprecated class TYPO3\\CMS\\Frontend\\Resource\\FilePathSanitizer\.$#'
+			identifier: parameter.deprecatedClass
+			count: 1
+			path: ../Classes/ViewHelpers/IncludeFileViewHelper.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
+			message: '#^Cannot access offset ''classes'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
+			message: '#^Cannot access offset ''columns'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
+			message: '#^Cannot access offset ''mapping'' on mixed\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
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+			identifier: return.type
+			count: 1
+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
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+			identifier: argument.type
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+			path: ../Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$property of method TYPO3\\CMS\\Core\\MetaTag\\MetaTagManagerInterface\:\:addProperty\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/MetaTagViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$property of method TYPO3\\CMS\\Core\\MetaTag\\MetaTagManagerRegistry\:\:getManagerForProperty\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/MetaTagViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$content of method TYPO3\\CMS\\Core\\MetaTag\\MetaTagManagerInterface\:\:addProperty\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/MetaTagViewHelper.php
+
+		-
+			message: '#^Strict comparison using \!\=\= between '''' and '''' will always evaluate to false\.$#'
+			identifier: notIdentical.alwaysFalse
+			count: 1
+			path: ../Classes/ViewHelpers/TitleTagViewHelper.php
+
+		-
+			message: '#^Variable \$arguments on left side of \?\? is never defined\.$#'
+			identifier: nullCoalesce.variable
+			count: 1
+			path: ../Classes/ViewHelpers/TitleTagViewHelper.php
+
+		-
+			message: '#^Cannot access offset string on array\<mixed, mixed\>\|Traversable\.$#'
+			identifier: offsetAccess.nonOffsetAccessible
+			count: 1
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Cannot call method add\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Cannot call method exists\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Cannot call method get\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Cannot call method remove\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Method Extcode\\Cart\\ViewHelpers\\Traversable\\ExtractViewHelper\:\:extractByKey\(\) has parameter \$iterator with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Parameter \#2 \$key of method Extcode\\Cart\\ViewHelpers\\Traversable\\ExtractViewHelper\:\:extractByKey\(\) expects string, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+
+		-
+			message: '#^Argument of an invalid type mixed supplied for foreach, only iterables are supported\.$#'
+			identifier: foreach.nonIterable
+			count: 1
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Cannot call method exists\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Cannot call method get\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
+			identifier: cast.string
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$subject of static method TYPO3\\CMS\\Extbase\\Reflection\\ObjectAccess\:\:getProperty\(\) expects array\|object, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Parameter \#1 \$subject of static method TYPO3\\CMS\\Extbase\\Reflection\\ObjectAccess\:\:getPropertyPath\(\) expects array\|object, mixed given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Classes/ViewHelpers/Variable/GetViewHelper.php
+
+		-
+			message: '#^Cannot call method add\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/SetViewHelper.php
+
+		-
+			message: '#^Cannot call method exists\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/SetViewHelper.php
+
+		-
+			message: '#^Cannot call method get\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Classes/ViewHelpers/Variable/SetViewHelper.php
+
+		-
+			message: '#^Cannot call method remove\(\) on TYPO3Fluid\\Fluid\\Core\\Variables\\VariableProviderInterface\|null\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Classes/ViewHelpers/Variable/SetViewHelper.php
+
+		-
+			message: '#^Cannot cast mixed to string\.$#'
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+		-
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+		-
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+		-
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+		-
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+		-
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+
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+		-
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+		-
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+
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+
+		-
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+
+		-
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+			identifier: classConstant.nonObject
+			count: 1
+			path: ../Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php
+
+		-
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+			path: ../Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php
+
+		-
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+
+		-
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+			identifier: classConstant.nonObject
+			count: 1
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+
+		-
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+			path: ../Tests/Functional/EventListener/Mail/AttachmentFromTypoScriptTest.php
+
+		-
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+
+		-
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+			count: 1
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+
+		-
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+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Controller/ProductControllerTest.php
+
+		-
+			message: '#^Cannot call method getSeverity\(\) on mixed\.$#'
+			identifier: method.nonObject
 			count: 2
-			path: ../Classes/Domain/Model/Cart/Cart.php
+			path: ../Tests/Unit/Controller/ProductControllerTest.php
 
 		-
-			message: "#^Call to an undefined method Extcode\\\\Cart\\\\Domain\\\\Model\\\\Cart\\\\CartCouponInterface\\:\\:setCart\\(\\)\\.$#"
+			message: '#^Cannot call method getTitle\(\) on mixed\.$#'
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 			count: 1
-			path: ../Classes/Domain/Model/Cart/Cart.php
+			path: ../Tests/Unit/Controller/ProductControllerTest.php
 
 		-
-			message: "#^Call to an undefined method Extcode\\\\Cart\\\\Service\\\\PaymentMethodsServiceInterface\\:\\:getConfigurationsForType\\(\\)\\.$#"
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+			identifier: missingType.iterableValue
 			count: 1
-			path: ../Classes/EventListener/Order/Finish/ClearCart.php
+			path: ../Tests/Unit/Controller/ProductControllerTest.php
+
+		-
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+
+		-
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+
+		-
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+			count: 1
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+
+		-
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+			count: 4
+			path: ../Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php
+
+		-
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+
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+			path: ../Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php
+
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+			path: ../Tests/Unit/Domain/Model/Cart/CartCouponPercentageTest.php
+
+		-
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+
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+
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+		-
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+			identifier: argument.type
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+			path: ../Tests/Unit/Domain/Model/Order/PaymentTest.php
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+		-
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+			identifier: missingType.generics
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitStub.php
+
+		-
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+			identifier: missingType.generics
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitStub.php
+
+		-
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+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
+
+		-
+			message: '#^Cannot call method getCategories\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
+
+		-
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+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
+
+		-
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+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
+
+		-
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+			path: ../Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
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+
+		-
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+
+		-
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+			identifier: offsetAccess.nonOffsetAccessible
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitStub.php
+
+		-
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+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitStub.php
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+		-
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+
+		-
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+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
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+			identifier: method.nonObject
+			count: 4
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
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+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
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+			count: 5
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method getPriceMeasure\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method getPriceMeasureUnit\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method setBasePriceMeasureUnit\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 5
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method setMeasureUnits\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method setPriceMeasure\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 3
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method setPriceMeasureUnit\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 4
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice\(\) has parameter \$calculatedBasePrice with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice\(\) has parameter \$factor with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice\(\) has parameter \$priceMeasure with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice\(\) has parameter \$sourceMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice\(\) has parameter \$targetMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit\(\) has parameter \$calculatedBasePrice with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit\(\) has parameter \$factor with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit\(\) has parameter \$priceMeasure with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit\(\) has parameter \$sourceMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit\(\) has parameter \$targetMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor\(\) has parameter \$calculatedBasePrice with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor\(\) has parameter \$factor with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor\(\) has parameter \$priceMeasure with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor\(\) has parameter \$sourceMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor\(\) has parameter \$targetMeasureUnit with no type specified\.$#'
+			identifier: missingType.parameter
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:measureUnitsProvider\(\) return type has no value type specified in iterable type iterable\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\MeasureTraitTest\:\:\$trait has no type specified\.$#'
+			identifier: missingType.property
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+
+		-
+			message: '#^Cannot call method getServiceAttribute1\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method getServiceAttribute2\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method getServiceAttribute3\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method setServiceAttribute1\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method setServiceAttribute2\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method setServiceAttribute3\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\ServiceAttributeTraitTest\:\:\$trait has no type specified\.$#'
+			identifier: missingType.property
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+
+		-
+			message: '#^Cannot call method getStock\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/StockTraitTest.php
+
+		-
+			message: '#^Cannot call method isHandleStock\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/StockTraitTest.php
+
+		-
+			message: '#^Cannot call method setIsHandleStock\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/StockTraitTest.php
+
+		-
+			message: '#^Cannot call method setStock\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/StockTraitTest.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\StockTraitTest\:\:\$trait has no type specified\.$#'
+			identifier: missingType.property
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/StockTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\TagTraitStub\:\:getTags\(\) return type with generic class TYPO3\\CMS\\Extbase\\Persistence\\ObjectStorage does not specify its types\: TEntity$#'
+			identifier: missingType.generics
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitStub.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\TagTraitStub\:\:setTags\(\) has parameter \$tags with generic class TYPO3\\CMS\\Extbase\\Persistence\\ObjectStorage but does not specify its types\: TEntity$#'
+			identifier: missingType.generics
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitStub.php
+
+		-
+			message: '#^Cannot call method addTag\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Cannot call method attach\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Cannot call method count\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 4
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Cannot call method getTags\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 8
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Cannot call method removeTag\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Cannot call method setTags\(\) on mixed\.$#'
+			identifier: method.nonObject
+			count: 2
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Property Extcode\\Cart\\Tests\\Unit\\Domain\\Model\\Product\\TagTraitTest\:\:\$trait has no type specified\.$#'
+			identifier: missingType.property
+			count: 1
+			path: ../Tests/Unit/Domain/Model/Product/TagTraitTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Validation\\Validator\\EmptyValidatorTest\:\:getValidator\(\) has parameter \$options with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Tests/Unit/Validation/Validator/EmptyValidatorTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Validation\\Validator\\EmptyValidatorTest\:\:getValidator\(\) should return TYPO3\\CMS\\Extbase\\Validation\\Validator\\ValidatorInterface but returns object\.$#'
+			identifier: return.type
+			count: 1
+			path: ../Tests/Unit/Validation/Validator/EmptyValidatorTest.php
+
+		-
+			message: '#^Method Extcode\\Cart\\Tests\\Unit\\Validation\\Validator\\EmptyValidatorTest\:\:validatorOptions\(\) has parameter \$options with no value type specified in iterable type array\.$#'
+			identifier: missingType.iterableValue
+			count: 1
+			path: ../Tests/Unit/Validation/Validator/EmptyValidatorTest.php
+
+		-
+			message: '#^Parameter \#1 \$className of method PHPUnit\\Framework\\TestCase\:\:getMockBuilder\(\) expects class\-string\<mixed\>, string given\.$#'
+			identifier: argument.type
+			count: 1
+			path: ../Tests/Unit/Validation/Validator/EmptyValidatorTest.php
+
+		-
+			message: '#^Unable to resolve the template type T in call to method PHPUnit\\Framework\\TestCase\:\:getMockBuilder\(\)$#'
+			identifier: argument.templateType
+			count: 1
+			path: ../Tests/Unit/Validation/Validator/EmptyValidatorTest.php
diff --git a/Build/phpstan.neon b/Build/phpstan.neon
index 13c67700..f582a280 100644
--- a/Build/phpstan.neon
+++ b/Build/phpstan.neon
@@ -1,10 +1,35 @@
 includes:
-  - phpstan-baseline.neon
+  - 'phpstan-baseline.neon'
+
 parameters:
-  level: 4
+  level: 'max'
+
   paths:
     - ../Classes
     - ../Configuration
     - ../Tests
-    - ../ext_emconf.php
     - ../ext_localconf.php
+
+  disallowedFunctionCalls:
+    -
+      function:
+        - 'var_dump()'
+        - 'xdebug_break()'
+      message: 'Do not add debugging'
+    -
+      function: 'header()'
+      message: 'Use API instead'
+
+  disallowedStaticCalls:
+      -
+        method: 'TYPO3\CMS\Extbase\Utility\DebuggerUtility::var_dump()'
+        message: 'Do not add debugging'
+
+  disallowedSuperglobals:
+      -
+        superglobal:
+          - '$_GET'
+          - '$_POST'
+          - '$_FILES'
+          - '$_SERVER'
+        message: 'Use API instead'
diff --git a/Build/FunctionalTests.xml b/Build/phpunit.xml.dist
similarity index 88%
rename from Build/FunctionalTests.xml
rename to Build/phpunit.xml.dist
index c381bae5..d6e33ac2 100644
--- a/Build/FunctionalTests.xml
+++ b/Build/phpunit.xml.dist
@@ -18,9 +18,12 @@
 >
   <coverage/>
   <testsuites>
-    <testsuite name="Cart Extension">
+    <testsuite name="functional">
       <directory>../Tests/Functional/</directory>
     </testsuite>
+      <testsuite name="unit">
+          <directory>../Tests/Unit/</directory>
+      </testsuite>
   </testsuites>
   <source>
     <include>
diff --git a/Classes/Command/OrderItemCleanupCommand.php b/Classes/Command/OrderItemCleanupCommand.php
index d58a49e5..b5e24830 100644
--- a/Classes/Command/OrderItemCleanupCommand.php
+++ b/Classes/Command/OrderItemCleanupCommand.php
@@ -27,7 +27,7 @@ public function __construct(
         parent::__construct();
     }
 
-    protected function configure()
+    protected function configure(): void
     {
         $this->setDescription('Will remove all old orders');
         $this->addArgument(
@@ -41,7 +41,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $cutOffDate = $input->getArgument('cutOffDate');
 
-        if (is_string($cutOffDate) === false || $this->isCutOffDateValid($cutOffDate) === false) {
+        if (is_string($cutOffDate) === false || self::isCutOffDateValid($cutOffDate) === false) {
             $output->writeln('The cutOffDate argument must follow the pattern YYYY-MM-DD.');
 
             return Command::FAILURE;
@@ -58,7 +58,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         return Command::SUCCESS;
     }
 
-    private function isCutOffDateValid(string $cutOffDate): bool
+    private static function isCutOffDateValid(string $cutOffDate): bool
     {
         $pattern = '/^\d{4}-\d{2}-\d{2}$/';
 
diff --git a/Classes/Constants.php b/Classes/Configuration/Constants.php
similarity index 93%
rename from Classes/Constants.php
rename to Classes/Configuration/Constants.php
index 2a5efc76..0364cb08 100644
--- a/Classes/Constants.php
+++ b/Classes/Configuration/Constants.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart;
+namespace Extcode\Cart\Configuration;
 
 /*
  * This file is part of the package extcode/cart
@@ -19,5 +19,6 @@ class Constants
     public const DOKTYPE_CART_CART = 181;
 
     public const LANGUAGE_PATH = 'LLL:EXT:cart/Resources/Private/Language/locallang.xlf';
+
     public const LANGUAGE_BE_PATH = 'LLL:EXT:cart/Resources/Private/Language/locallang_be.xlf';
 }
diff --git a/Classes/Service/CurrencyTranslationService.php b/Classes/Configuration/Loader/CurrencyTranslationLoader.php
similarity index 78%
rename from Classes/Service/CurrencyTranslationService.php
rename to Classes/Configuration/Loader/CurrencyTranslationLoader.php
index 526392f6..529eccb5 100644
--- a/Classes/Service/CurrencyTranslationService.php
+++ b/Classes/Configuration/Loader/CurrencyTranslationLoader.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -11,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-class CurrencyTranslationService implements CurrencyTranslationServiceInterface
+class CurrencyTranslationLoader implements CurrencyTranslationLoaderInterface
 {
     public function translatePrice(float $factor, ?float $price = null): ?float
     {
diff --git a/Classes/Service/CurrencyTranslationServiceInterface.php b/Classes/Configuration/Loader/CurrencyTranslationLoaderInterface.php
similarity index 83%
rename from Classes/Service/CurrencyTranslationServiceInterface.php
rename to Classes/Configuration/Loader/CurrencyTranslationLoaderInterface.php
index f1ee3fe2..a236a7fb 100644
--- a/Classes/Service/CurrencyTranslationServiceInterface.php
+++ b/Classes/Configuration/Loader/CurrencyTranslationLoaderInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -14,7 +14,7 @@
 /**
  * @internal This class is marked internal and is not considered part of the public API. The interface will change in the next major version (v12.0.0).
  */
-interface CurrencyTranslationServiceInterface
+interface CurrencyTranslationLoaderInterface
 {
     public function translatePrice(float $factor, ?float $price = null): ?float;
 }
diff --git a/Classes/Service/PaymentMethodsServiceInterface.php b/Classes/Configuration/Loader/PaymentMethodsLoaderInterface.php
similarity index 83%
rename from Classes/Service/PaymentMethodsServiceInterface.php
rename to Classes/Configuration/Loader/PaymentMethodsLoaderInterface.php
index 64a59fea..cc892c44 100644
--- a/Classes/Service/PaymentMethodsServiceInterface.php
+++ b/Classes/Configuration/Loader/PaymentMethodsLoaderInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -14,7 +14,7 @@
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\ServiceInterface;
 
-interface PaymentMethodsServiceInterface
+interface PaymentMethodsLoaderInterface
 {
     /**
      * @return ServiceInterface[]
diff --git a/Classes/Service/ShippingMethodsServiceInterface.php b/Classes/Configuration/Loader/ShippingMethodsLoaderInterface.php
similarity index 83%
rename from Classes/Service/ShippingMethodsServiceInterface.php
rename to Classes/Configuration/Loader/ShippingMethodsLoaderInterface.php
index 882c0b09..f6cc33dd 100644
--- a/Classes/Service/ShippingMethodsServiceInterface.php
+++ b/Classes/Configuration/Loader/ShippingMethodsLoaderInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -14,7 +14,7 @@
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\ServiceInterface;
 
-interface ShippingMethodsServiceInterface
+interface ShippingMethodsLoaderInterface
 {
     /**
      * @return ServiceInterface[]
diff --git a/Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php b/Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
new file mode 100644
index 00000000..eb33e167
--- /dev/null
+++ b/Classes/Configuration/Loader/SiteSets/AbstractConfigurationLoader.php
@@ -0,0 +1,136 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Configuration\Loader\SiteSets;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Cart\Cart;
+use Extcode\Cart\Domain\Model\Cart\ServiceFactory;
+use Extcode\Cart\Domain\Model\Cart\ServiceInterface;
+use Extcode\Cart\Utility\Typo3GlobalsUtility;
+use TYPO3\CMS\Core\Site\Entity\Site;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+abstract readonly class AbstractConfigurationLoader
+{
+    private Site $site;
+
+    public function __construct(
+        private ServiceFactory $serviceFactory
+    ) {
+        $this->site = Typo3GlobalsUtility::getSiteFromTypo3Request();
+    }
+
+    /**
+     * @param array<int, ServiceInterface> $services
+     *
+     * @return array<int, ServiceInterface>
+     */
+    public function getServices(?array $configurations, array $services, Cart $cart): array
+    {
+        if (is_array($configurations['options'] ?? null) === false) {
+            return $services;
+        }
+
+        foreach ($configurations['options'] as $serviceKey => $serviceConfig) {
+            if (is_numeric($serviceKey) === false
+                || is_array($serviceConfig) === false
+            ) {
+                continue;
+            }
+
+            $service = $this->serviceFactory->getService(
+                (int) $serviceKey,
+                $serviceConfig,
+                $configurations['preset'] == $serviceKey
+            );
+            $service->setCart($cart);
+
+            $services[$serviceKey] = $service;
+        }
+
+        return $services;
+    }
+
+    public function getConfigurationsForType(string $configurationType, ?string $country = null): ?array
+    {
+        $configurations = $this->site->getSettings()->getAll();
+        if (is_array($configurations['extcode']) === false
+            || is_array($configurations['extcode'][$configurationType]) === false
+        ) {
+            return null;
+        }
+
+        $configuration = $configurations['extcode'][$configurationType];
+
+        if (is_null($country)) {
+            $country = self::getCountryCodeFromPreset($configuration);
+        }
+        if (is_null($country)) {
+            return null;
+        }
+
+        if (is_array($configuration['countries'])
+            && is_array($configuration['countries'][$country])
+        ) {
+            return $configuration['countries'][$country];
+        }
+
+        if (!empty($configuration['zones'])
+            && is_array($configuration['zones'])
+        ) {
+            $zoneSetting = $this->getTypeZonesPluginSettings($configuration['zones'], $country);
+            if (!empty($zoneSetting)) {
+                return $zoneSetting;
+            }
+        }
+
+        return $configuration;
+    }
+
+    protected function getTypeZonesPluginSettings(array $zoneSettings, string $country): array
+    {
+        foreach ($zoneSettings as $zoneSetting) {
+            if (is_array($zoneSetting) === false
+                || is_string($zoneSetting['countries']) === false
+            ) {
+                continue;
+            }
+            $countriesInZones = GeneralUtility::trimExplode(',', $zoneSetting['countries'], true);
+
+            if (in_array($country, $countriesInZones)) {
+                return $zoneSetting;
+            }
+        }
+
+        return [];
+    }
+
+    private static function getCountryCodeFromPreset(array $configuration): ?string
+    {
+        if (is_array($configuration['settings']) === false
+            || is_array($configuration['settings']['countries']) === false
+            || is_numeric($configuration['settings']['countries']['preset']) === false
+        ) {
+            return null;
+        }
+
+        $preset = (int) $configuration['settings']['countries']['preset'];
+
+        if (is_array($configuration['settings']['countries']['options']) === false
+            || is_array($configuration['settings']['countries']['options'][$preset]) === false
+            || is_string($configuration['settings']['countries']['options'][$preset]['code']) === false
+        ) {
+            return null;
+        }
+
+        return $configuration['settings']['countries']['options'][$preset]['code'];
+    }
+}
diff --git a/Classes/Configuration/Loader/SiteSets/PaymentMethodsLoader.php b/Classes/Configuration/Loader/SiteSets/PaymentMethodsLoader.php
new file mode 100644
index 00000000..99bb143f
--- /dev/null
+++ b/Classes/Configuration/Loader/SiteSets/PaymentMethodsLoader.php
@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Configuration\Loader\SiteSets;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
+use Extcode\Cart\Domain\Model\Cart\Cart;
+
+final readonly class PaymentMethodsLoader extends AbstractConfigurationLoader implements PaymentMethodsLoaderInterface
+{
+    public function getPaymentMethods(Cart $cart): array
+    {
+        $services = [];
+
+        $configurations = $this->getConfigurationsForType('cart-payments', $cart->getBillingCountry());
+
+        return $this->getServices($configurations, $services, $cart);
+    }
+}
diff --git a/Classes/Configuration/Loader/SiteSets/ShippingMethodsLoader.php b/Classes/Configuration/Loader/SiteSets/ShippingMethodsLoader.php
new file mode 100644
index 00000000..79d758f3
--- /dev/null
+++ b/Classes/Configuration/Loader/SiteSets/ShippingMethodsLoader.php
@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Configuration\Loader\SiteSets;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Configuration\Loader\ShippingMethodsLoaderInterface;
+use Extcode\Cart\Domain\Model\Cart\Cart;
+
+final readonly class ShippingMethodsLoader extends AbstractConfigurationLoader implements ShippingMethodsLoaderInterface
+{
+    public function getShippingMethods(Cart $cart): array
+    {
+        $services = [];
+
+        $configurations = $this->getConfigurationsForType('cart-shippings', $cart->getBillingCountry());
+
+        return $this->getServices($configurations, $services, $cart);
+    }
+}
diff --git a/Classes/Configuration/Loader/SiteSets/TaxClassLoader.php b/Classes/Configuration/Loader/SiteSets/TaxClassLoader.php
new file mode 100644
index 00000000..d358437f
--- /dev/null
+++ b/Classes/Configuration/Loader/SiteSets/TaxClassLoader.php
@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Configuration\Loader\SiteSets;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Configuration\Loader\TaxClassLoaderInterface;
+use Extcode\Cart\Domain\Model\Cart\TaxClass;
+use Extcode\Cart\Domain\Model\Cart\TaxClassFactoryInterface;
+use Extcode\Cart\Domain\Model\Cart\TaxClassInterface;
+use Extcode\Cart\Utility\Typo3GlobalsUtility;
+use TYPO3\CMS\Core\Site\Entity\Site;
+
+final readonly class TaxClassLoader implements TaxClassLoaderInterface
+{
+    private Site $site;
+
+    public function __construct(
+        private TaxClassFactoryInterface $taxClassFactory,
+    ) {
+        $this->site = Typo3GlobalsUtility::getSiteFromTypo3Request();
+    }
+
+    /**
+     * @return TaxClass[]
+     */
+    public function getTaxClasses(?string $countryCode = null): array
+    {
+        $taxClasses = [];
+
+        $configuration = $this->site->getSettings()->getAll();
+        if (is_array($configuration['extcode']) === false
+            || is_array($configuration['extcode']['taxclasses']) === false
+        ) {
+            return [];
+        }
+
+        $taxClassSettings = $configuration['extcode']['taxclasses'];
+        if (
+            is_string($countryCode)
+                && array_key_exists($countryCode, $taxClassSettings)
+                && is_array($taxClassSettings[$countryCode])
+        ) {
+            $taxClassSettings = $taxClassSettings[$countryCode];
+        } elseif (
+            array_key_exists('fallback', $taxClassSettings)
+            && is_array($taxClassSettings['fallback'])
+        ) {
+            $taxClassSettings = $taxClassSettings['fallback'];
+        }
+
+        foreach ($taxClassSettings as $taxClassKey => $taxClassValue) {
+            if (is_array($taxClassValue) === false) {
+                continue;
+            }
+            $taxClass = $this->taxClassFactory->getTaxClass($taxClassKey, $taxClassValue);
+
+            if ($taxClass instanceof TaxClassInterface) {
+                $taxClasses[$taxClassKey] = $taxClass;
+            }
+        }
+
+        return $taxClasses;
+    }
+}
diff --git a/Classes/Service/SpecialOptionsServiceInterface.php b/Classes/Configuration/Loader/SpecialOptionsLoaderInterface.php
similarity index 79%
rename from Classes/Service/SpecialOptionsServiceInterface.php
rename to Classes/Configuration/Loader/SpecialOptionsLoaderInterface.php
index 7adb4e9a..fd5cf0dd 100644
--- a/Classes/Service/SpecialOptionsServiceInterface.php
+++ b/Classes/Configuration/Loader/SpecialOptionsLoaderInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -13,7 +13,7 @@
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
 
-interface SpecialOptionsServiceInterface
+interface SpecialOptionsLoaderInterface
 {
     public function getSpecialOptions(Cart $cart): array;
 }
diff --git a/Classes/Service/TaxClassServiceInterface.php b/Classes/Configuration/Loader/TaxClassLoaderInterface.php
similarity index 82%
rename from Classes/Service/TaxClassServiceInterface.php
rename to Classes/Configuration/Loader/TaxClassLoaderInterface.php
index beb280c6..cd1024e4 100644
--- a/Classes/Service/TaxClassServiceInterface.php
+++ b/Classes/Configuration/Loader/TaxClassLoaderInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader;
 
 /*
  * This file is part of the package extcode/cart.
@@ -13,7 +13,7 @@
 
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
 
-interface TaxClassServiceInterface
+interface TaxClassLoaderInterface
 {
     /**
      * @return TaxClass[]
diff --git a/Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php b/Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
new file mode 100644
index 00000000..7c32ac95
--- /dev/null
+++ b/Classes/Configuration/Loader/TypoScript/AbstractConfigurationLoader.php
@@ -0,0 +1,122 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Configuration\Loader\TypoScript;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Cart\Cart;
+use Extcode\Cart\Domain\Model\Cart\ServiceFactory;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
+
+abstract readonly class AbstractConfigurationLoader
+{
+    protected array $configurations;
+
+    public function __construct(
+        private ConfigurationManagerInterface $configurationManager,
+        private ServiceFactory $serviceFactory
+    ) {
+        $this->configurations = $this->configurationManager->getConfiguration(
+            ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK,
+            'Cart'
+        );
+    }
+
+    public function getServices(?array $configurations, array $services, Cart $cart): array
+    {
+        if (empty($configurations['options'])) {
+            return $services;
+        }
+
+        foreach ($configurations['options'] as $serviceKey => $serviceConfig) {
+            $service = $this->serviceFactory->getService($serviceKey, $serviceConfig, $configurations['preset'] == $serviceKey);
+            $service->setCart($cart);
+
+            $services[$serviceKey] = $service;
+        }
+
+        return $services;
+    }
+
+    public function getConfigurationsForType(string $configurationType, ?string $country = null): ?array
+    {
+        if (is_array($this->configurations[$configurationType]) === false
+        ) {
+            return null;
+        }
+
+        $configuration = $this->configurations[$configurationType];
+
+        if (is_null($country)) {
+            $country = self::getCountryCodeFromPreset($configuration);
+        }
+        if (is_null($country)) {
+            return null;
+        }
+
+        if (!empty($configuration['countries'])
+            && is_array($configuration['countries'])
+            && is_array($configuration['countries'][$country])
+        ) {
+            return $configuration['countries'][$country];
+        }
+
+        if (!empty($configuration['zones'])
+            && is_array($configuration['zones'])
+        ) {
+            $zoneSetting = $this->getTypeZonesPluginSettings($configuration['zones'], $country);
+            if (!empty($zoneSetting)) {
+                return $zoneSetting;
+            }
+        }
+
+        return $configuration;
+    }
+
+    protected function getTypeZonesPluginSettings(array $zoneSettings, string $country): array
+    {
+        foreach ($zoneSettings as $zoneSetting) {
+            if (is_array($zoneSetting) === false
+                || is_string($zoneSetting['countries']) === false
+            ) {
+                continue;
+            }
+            $countriesInZones = GeneralUtility::trimExplode(',', $zoneSetting['countries'], true);
+
+            if (in_array($country, $countriesInZones)) {
+                return $zoneSetting;
+            }
+        }
+
+        return [];
+    }
+
+    private static function getCountryCodeFromPreset(array $configuration): ?string
+    {
+        if (is_array($configuration['settings']) === false
+            || is_array($configuration['settings']['countries']) === false
+            || is_numeric($configuration['settings']['countries']['preset']) === false
+        ) {
+            return null;
+        }
+
+        $preset = (int) $configuration['settings']['countries']['preset'];
+
+        if (is_array($configuration['settings']['countries']['options']) === false
+            || is_array($configuration['settings']['countries']['options'][$preset]) === false
+            || is_string($configuration['settings']['countries']['options'][$preset]['code']) === false
+        ) {
+            return null;
+        }
+
+        return $configuration['settings']['countries']['options'][$preset]['code'];
+    }
+}
diff --git a/Classes/Service/PaymentMethodsFromTypoScriptService.php b/Classes/Configuration/Loader/TypoScript/PaymentMethodsLoader.php
similarity index 68%
rename from Classes/Service/PaymentMethodsFromTypoScriptService.php
rename to Classes/Configuration/Loader/TypoScript/PaymentMethodsLoader.php
index c083fa24..b926f801 100644
--- a/Classes/Service/PaymentMethodsFromTypoScriptService.php
+++ b/Classes/Configuration/Loader/TypoScript/PaymentMethodsLoader.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -11,9 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 
-class PaymentMethodsFromTypoScriptService extends AbstractConfigurationFromTypoScriptService implements PaymentMethodsServiceInterface
+final readonly class PaymentMethodsLoader extends AbstractConfigurationLoader implements PaymentMethodsLoaderInterface
 {
     public function getPaymentMethods(Cart $cart): array
     {
diff --git a/Classes/Service/ShippingMethodsFromTypoScriptService.php b/Classes/Configuration/Loader/TypoScript/ShippingMethodsLoader.php
similarity index 68%
rename from Classes/Service/ShippingMethodsFromTypoScriptService.php
rename to Classes/Configuration/Loader/TypoScript/ShippingMethodsLoader.php
index 31b579e7..26525abd 100644
--- a/Classes/Service/ShippingMethodsFromTypoScriptService.php
+++ b/Classes/Configuration/Loader/TypoScript/ShippingMethodsLoader.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -11,9 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\ShippingMethodsLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 
-class ShippingMethodsFromTypoScriptService extends AbstractConfigurationFromTypoScriptService implements ShippingMethodsServiceInterface
+final readonly class ShippingMethodsLoader extends AbstractConfigurationLoader implements ShippingMethodsLoaderInterface
 {
     public function getShippingMethods(Cart $cart): array
     {
diff --git a/Classes/Service/SpecialOptionsFromTypoScriptService.php b/Classes/Configuration/Loader/TypoScript/SpecialOptionsLoader.php
similarity index 68%
rename from Classes/Service/SpecialOptionsFromTypoScriptService.php
rename to Classes/Configuration/Loader/TypoScript/SpecialOptionsLoader.php
index 53256181..e255e182 100644
--- a/Classes/Service/SpecialOptionsFromTypoScriptService.php
+++ b/Classes/Configuration/Loader/TypoScript/SpecialOptionsLoader.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -11,9 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\SpecialOptionsLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 
-class SpecialOptionsFromTypoScriptService extends AbstractConfigurationFromTypoScriptService implements SpecialOptionsServiceInterface
+final readonly class SpecialOptionsLoader extends AbstractConfigurationLoader implements SpecialOptionsLoaderInterface
 {
     public function getSpecialOptions(Cart $cart): array
     {
diff --git a/Classes/Service/TaxClassService.php b/Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
similarity index 76%
rename from Classes/Service/TaxClassService.php
rename to Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
index a1615a45..6fc34111 100644
--- a/Classes/Service/TaxClassService.php
+++ b/Classes/Configuration/Loader/TypoScript/TaxClassLoader.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Extcode\Cart\Service;
+namespace Extcode\Cart\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -11,18 +11,19 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\TaxClassLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
 use Extcode\Cart\Domain\Model\Cart\TaxClassFactoryInterface;
 use Extcode\Cart\Domain\Model\Cart\TaxClassInterface;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 
-final class TaxClassService implements TaxClassServiceInterface
+final readonly class TaxClassLoader implements TaxClassLoaderInterface
 {
     private array $settings;
 
     public function __construct(
-        private readonly ConfigurationManagerInterface $configurationManager,
-        private readonly TaxClassFactoryInterface $taxClassFactory
+        private ConfigurationManagerInterface $configurationManager,
+        private TaxClassFactoryInterface $taxClassFactory
     ) {
         $this->settings = $this->configurationManager->getConfiguration(
             ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK,
@@ -39,9 +40,9 @@ public function getTaxClasses(?string $countryCode = null): array
         $taxClassSettings = $this->settings['taxClasses'];
 
         if (
-            is_null($countryCode) === false
-            && array_key_exists($countryCode, $taxClassSettings)
-            && is_array($taxClassSettings[$countryCode])
+            is_string($countryCode)
+                && array_key_exists($countryCode, $taxClassSettings)
+                && is_array($taxClassSettings[$countryCode])
         ) {
             $taxClassSettings = $taxClassSettings[$countryCode];
         } elseif (
diff --git a/Classes/Controller/Backend/ActionController.php b/Classes/Controller/Backend/ActionController.php
index 75ab8d30..5005078c 100644
--- a/Classes/Controller/Backend/ActionController.php
+++ b/Classes/Controller/Backend/ActionController.php
@@ -12,13 +12,18 @@
  */
 
 use TYPO3\CMS\Backend\Utility\BackendUtility;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManager;
+use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 
 class ActionController extends \TYPO3\CMS\Extbase\Mvc\Controller\ActionController
 {
     protected array $pluginSettings = [];
 
+    public function __construct(
+        protected ConfigurationManagerInterface $configurationManager
+    ) {
+    }
+
     protected function initializeAction(): void
     {
         $this->pluginSettings
@@ -26,16 +31,14 @@ protected function initializeAction(): void
                 ConfigurationManager::CONFIGURATION_TYPE_FRAMEWORK
             );
 
-        $pageId = (int)($this->request->getQueryParams()['id'] ?? 1);
+        $pageId = (int) ($this->request->getQueryParams()['id'] ?? 1);
 
         BackendUtility::readPageAccess(
             $pageId,
             $GLOBALS['BE_USER']->getPagePermsClause(1)
         );
 
-        $configurationManager = GeneralUtility::makeInstance(
-            ConfigurationManager::class
-        );
+        $configurationManager = $this->configurationManager;
 
         $frameworkConf
             = $configurationManager->getConfiguration(
diff --git a/Classes/Controller/Backend/Order/DocumentController.php b/Classes/Controller/Backend/Order/DocumentController.php
index 3df52aa9..bbe55be1 100644
--- a/Classes/Controller/Backend/Order/DocumentController.php
+++ b/Classes/Controller/Backend/Order/DocumentController.php
@@ -18,7 +18,6 @@
 use Extcode\Cart\Event\Order\NumberGeneratorEvent;
 use Extcode\CartPdf\Service\PdfService;
 use Psr\Http\Message\ResponseInterface;
-use TYPO3\CMS\Core\Resource\File;
 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Persistence\Generic\PersistenceManager;
@@ -29,7 +28,8 @@ class DocumentController extends ActionController
     public function __construct(
         protected readonly PersistenceManager $persistenceManager,
         protected readonly ItemRepository $itemRepository
-    ) {}
+    ) {
+    }
 
     public function createAction(Item $orderItem, string $pdfType): ResponseInterface
     {
@@ -80,12 +80,13 @@ public function downloadAction(Item $orderItem, string $pdfType): ResponseInterf
                 ->withHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0')
                 ->withHeader('Content-Description', 'File Transfer')
                 ->withHeader('Content-Disposition', 'attachment; filename="' . $originalPdf->getName() . '"')
-                ->withHeader('Content-Length', (string)$originalPdf->getSize())
+                ->withHeader('Content-Length', (string) $originalPdf->getSize())
                 ->withHeader('Content-Transfer-Encoding', 'binary')
                 ->withHeader('Content-Type', 'application/pdf')
                 ->withHeader('Expires', '0')
                 ->withHeader('Pragma', 'public')
-                ->withBody($this->streamFactory->createStream($originalPdf->getContents()));
+                ->withBody($this->streamFactory->createStream($originalPdf->getContents()))
+            ;
         }
 
         return $this->htmlResponse();
diff --git a/Classes/Controller/Backend/Order/OrderController.php b/Classes/Controller/Backend/Order/OrderController.php
index 15cefc8b..2985cb6a 100644
--- a/Classes/Controller/Backend/Order/OrderController.php
+++ b/Classes/Controller/Backend/Order/OrderController.php
@@ -10,7 +10,6 @@
  * For the full copyright and license information, please read the
  * LICENSE file that was distributed with this source code.
  */
-
 use Extcode\Cart\Controller\Backend\ActionController;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Order\Item;
@@ -20,6 +19,7 @@
 use Extcode\Cart\Event\Template\Components\ModifyModuleTemplateEvent;
 use Psr\Http\Message\ResponseInterface;
 use TYPO3\CMS\Backend\Template\Components\ButtonBar;
+use TYPO3\CMS\Backend\Template\Components\ComponentFactory;
 use TYPO3\CMS\Backend\Template\ModuleTemplate;
 use TYPO3\CMS\Backend\Template\ModuleTemplateFactory;
 use TYPO3\CMS\Core\Imaging\IconFactory;
@@ -33,30 +33,24 @@
 use TYPO3\CMS\Extbase\Pagination\QueryResultPaginator;
 use TYPO3\CMS\Extbase\Persistence\Generic\PersistenceManager;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
+use stdClass;
 
 class OrderController extends ActionController
 {
     private const LANG_FILE = 'LLL:EXT:cart/Resources/Private/Language/locallang.xlf:';
 
-    private ModuleTemplate $moduleTemplate;
-
     protected array $searchArguments = [];
 
+    private ModuleTemplate $moduleTemplate;
+
     public function __construct(
         protected readonly ModuleTemplateFactory $moduleTemplateFactory,
         protected readonly IconFactory $iconFactory,
         protected readonly PersistenceManager $persistenceManager,
         protected readonly ItemRepository $itemRepository,
-        private readonly PageRenderer $pageRenderer
-    ) {}
-
-    protected function initializeAction(): void
-    {
-        parent::initializeAction();
-
-        if ($this->request->hasArgument('search')) {
-            $this->searchArguments = $this->request->getArgument('search');
-        }
+        private readonly PageRenderer $pageRenderer,
+        private readonly ComponentFactory $componentFactory
+    ) {
     }
 
     public function listAction(int $currentPage = 1): ResponseInterface
@@ -69,7 +63,7 @@ public function listAction(int $currentPage = 1): ResponseInterface
         $this->moduleTemplate->assign('settings', $this->settings);
         $this->moduleTemplate->assign('searchArguments', $this->searchArguments);
 
-        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int)$this->settings['itemsPerPage'] : 20;
+        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int) $this->settings['itemsPerPage'] : 20;
 
         $orderItems = $this->itemRepository->findAll($this->searchArguments);
         $arrayPaginator = new QueryResultPaginator(
@@ -155,7 +149,8 @@ public function exportAction(): ResponseInterface
             ->withAddedHeader('Content-Type', 'text/' . $format)
             ->withAddedHeader('Content-Description', 'File transfer')
             ->withAddedHeader('Content-Disposition', 'attachment; filename="' . $filename . '"')
-            ->withBody($this->streamFactory->createStream($this->view->render()));
+            ->withBody($this->streamFactory->createStream($this->view->render()))
+        ;
     }
 
     public function generateNumberAction(Item $orderItem, string $numberType): ResponseInterface
@@ -193,7 +188,7 @@ public function getPaymentStatus(): array
     {
         $paymentStatusArray = [];
 
-        $paymentStatus = new \stdClass();
+        $paymentStatus = new stdClass();
         $paymentStatus->key = '';
         $paymentStatus->value = LocalizationUtility::translate(
             'tx_cart_domain_model_order_payment.status.all',
@@ -203,7 +198,7 @@ public function getPaymentStatus(): array
 
         $entries = ['open', 'pending', 'paid', 'canceled'];
         foreach ($entries as $entry) {
-            $paymentStatus = new \stdClass();
+            $paymentStatus = new stdClass();
             $paymentStatus->key = $entry;
             $paymentStatus->value = LocalizationUtility::translate(
                 'tx_cart_domain_model_order_payment.status.' . $entry,
@@ -211,6 +206,7 @@ public function getPaymentStatus(): array
             );
             $paymentStatusArray[] = $paymentStatus;
         }
+
         return $paymentStatusArray;
     }
 
@@ -218,7 +214,7 @@ public function getShippingStatus(): array
     {
         $shippingStatusArray = [];
 
-        $shippingStatus = new \stdClass();
+        $shippingStatus = new stdClass();
         $shippingStatus->key = '';
         $shippingStatus->value = LocalizationUtility::translate(
             'tx_cart_domain_model_order_shipping.status.all',
@@ -228,7 +224,7 @@ public function getShippingStatus(): array
 
         $entries = ['open', 'on_hold', 'in_process', 'shipped'];
         foreach ($entries as $entry) {
-            $shippingStatus = new \stdClass();
+            $shippingStatus = new stdClass();
             $shippingStatus->key = $entry;
             $shippingStatus->value = LocalizationUtility::translate(
                 'tx_cart_domain_model_order_shipping.status.' . $entry,
@@ -236,9 +232,19 @@ public function getShippingStatus(): array
             );
             $shippingStatusArray[] = $shippingStatus;
         }
+
         return $shippingStatusArray;
     }
 
+    protected function initializeAction(): void
+    {
+        parent::initializeAction();
+
+        if ($this->request->hasArgument('search')) {
+            $this->searchArguments = $this->request->getArgument('search');
+        }
+    }
+
     protected function getLanguageService(): LanguageService
     {
         return $GLOBALS['LANG'];
@@ -275,13 +281,14 @@ private function setDocHeader(array $buttons): void
 
         foreach ($buttons as $button) {
             $title = $this->getLanguageService()->sL(self::LANG_FILE . $button['title']);
-            $icon = $this->iconFactory->getIcon($button['icon'], IconSize::SMALL->value);
+            $icon = $this->iconFactory->getIcon($button['icon'], IconSize::SMALL);
 
-            $viewButton = $buttonBar->makeLinkButton()
+            $viewButton = $this->componentFactory->createLinkButton()
                 ->setHref($button['link'])
                 ->setTitle($title)
                 ->setShowLabelText($button['showLabel'])
-                ->setIcon($icon);
+                ->setIcon($icon)
+            ;
             $buttonBar->addButton($viewButton, ButtonBar::BUTTON_POSITION_LEFT, $button['group']);
         }
     }
diff --git a/Classes/Controller/Backend/Order/PaymentController.php b/Classes/Controller/Backend/Order/PaymentController.php
index 76dc559c..15a64d7f 100644
--- a/Classes/Controller/Backend/Order/PaymentController.php
+++ b/Classes/Controller/Backend/Order/PaymentController.php
@@ -12,21 +12,36 @@
  */
 
 use Extcode\Cart\Controller\Backend\ActionController;
+use Extcode\Cart\Domain\Log\LogServiceInterface;
+use Extcode\Cart\Domain\Log\Model\Log;
 use Extcode\Cart\Domain\Model\Order\Payment;
 use Extcode\Cart\Domain\Repository\Order\PaymentRepository;
 use Extcode\Cart\Event\Order\UpdateServiceEvent;
+use InvalidArgumentException;
 use Psr\Http\Message\ResponseInterface;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 
 class PaymentController extends ActionController
 {
     public function __construct(
-        protected PaymentRepository $paymentRepository
-    ) {}
+        private readonly PaymentRepository $paymentRepository,
+        private readonly LogServiceInterface $logService,
+    ) {
+    }
 
     public function updateAction(Payment $payment): ResponseInterface
     {
         $this->paymentRepository->update($payment);
+        $this->logService->write(
+            Log::info(
+                self::getOrderItemUid($payment),
+                'updatePayment',
+                'Payment was set to ' . $payment->getStatus() . '.',
+                [
+                    'time' => time(),
+                ]
+            )
+        );
 
         $event = new UpdateServiceEvent($payment);
         $this->eventDispatcher->dispatch($event);
@@ -40,4 +55,15 @@ public function updateAction(Payment $payment): ResponseInterface
 
         return $this->redirect('show', 'Backend\Order\Order', null, ['orderItem' => $payment->getItem()]);
     }
+
+    private static function getOrderItemUid(Payment $payment): int
+    {
+        $orderItemUid = $payment->getItem()?->getUid();
+
+        if (is_null($orderItemUid)) {
+            throw new InvalidArgumentException('Method should only called for persisted orders.', 1774715307);
+        }
+
+        return $orderItemUid;
+    }
 }
diff --git a/Classes/Controller/Backend/Order/ShippingController.php b/Classes/Controller/Backend/Order/ShippingController.php
index f2cfed3e..c39a8512 100644
--- a/Classes/Controller/Backend/Order/ShippingController.php
+++ b/Classes/Controller/Backend/Order/ShippingController.php
@@ -12,21 +12,36 @@
  */
 
 use Extcode\Cart\Controller\Backend\ActionController;
+use Extcode\Cart\Domain\Log\LogServiceInterface;
+use Extcode\Cart\Domain\Log\Model\Log;
 use Extcode\Cart\Domain\Model\Order\Shipping;
 use Extcode\Cart\Domain\Repository\Order\ShippingRepository;
 use Extcode\Cart\Event\Order\UpdateServiceEvent;
+use InvalidArgumentException;
 use Psr\Http\Message\ResponseInterface;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 
 class ShippingController extends ActionController
 {
     public function __construct(
-        protected ShippingRepository $shippingRepository
-    ) {}
+        private readonly ShippingRepository $shippingRepository,
+        private readonly LogServiceInterface $logService,
+    ) {
+    }
 
     public function updateAction(Shipping $shipping): ResponseInterface
     {
         $this->shippingRepository->update($shipping);
+        $this->logService->write(
+            Log::info(
+                self::getOrderItemUid($shipping),
+                'updateShipping',
+                'Shipping was set to ' . $shipping->getStatus() . '.',
+                [
+                    'time' => time(),
+                ]
+            )
+        );
 
         $event = new UpdateServiceEvent($shipping);
         $this->eventDispatcher->dispatch($event);
@@ -40,4 +55,15 @@ public function updateAction(Shipping $shipping): ResponseInterface
 
         return $this->redirect('show', 'Backend\Order\Order', null, ['orderItem' => $shipping->getItem()]);
     }
+
+    private static function getOrderItemUid(Shipping $shipping): int
+    {
+        $orderItemUid = $shipping->getItem()?->getUid();
+
+        if (is_null($orderItemUid)) {
+            throw new InvalidArgumentException('Method should only called for persisted orders.', 1774715307);
+        }
+
+        return $orderItemUid;
+    }
 }
diff --git a/Classes/Controller/Cart/ActionController.php b/Classes/Controller/Cart/ActionController.php
index fdf54a7a..a0d7a753 100644
--- a/Classes/Controller/Cart/ActionController.php
+++ b/Classes/Controller/Cart/ActionController.php
@@ -11,11 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\ShippingMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\SpecialOptionsLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Service\PaymentMethodsServiceInterface;
 use Extcode\Cart\Service\SessionHandler;
-use Extcode\Cart\Service\ShippingMethodsServiceInterface;
-use Extcode\Cart\Service\SpecialOptionsServiceInterface;
 use Extcode\Cart\Utility\CartUtility;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManager;
 
@@ -25,16 +25,20 @@ abstract class ActionController extends \Extcode\Cart\Controller\ActionControlle
 
     protected CartUtility $cartUtility;
 
-    protected PaymentMethodsServiceInterface $paymentMethodsService;
-    protected ShippingMethodsServiceInterface $shippingMethodsService;
-    protected SpecialOptionsServiceInterface $specialOptionsService;
+    protected PaymentMethodsLoaderInterface $paymentMethodsLoader;
+
+    protected ShippingMethodsLoaderInterface $shippingMethodsLoader;
+
+    protected SpecialOptionsLoaderInterface $specialOptionsLoader;
 
     protected array $configurations;
 
     protected Cart $cart;
 
     protected array $payments = [];
+
     protected array $shippings = [];
+
     protected array $specials = [];
 
     public function injectSessionHandler(SessionHandler $sessionHandler): void
@@ -47,19 +51,19 @@ public function injectCartUtility(CartUtility $cartUtility): void
         $this->cartUtility = $cartUtility;
     }
 
-    public function injectPaymentMethodsService(PaymentMethodsServiceInterface $paymentMethodsService): void
+    public function injectPaymentMethodsService(PaymentMethodsLoaderInterface $paymentMethodsLoader): void
     {
-        $this->paymentMethodsService = $paymentMethodsService;
+        $this->paymentMethodsLoader = $paymentMethodsLoader;
     }
 
-    public function injectShippingMethodsService(ShippingMethodsServiceInterface $shippingMethodsService): void
+    public function injectShippingMethodsService(ShippingMethodsLoaderInterface $shippingMethodsLoader): void
     {
-        $this->shippingMethodsService = $shippingMethodsService;
+        $this->shippingMethodsLoader = $shippingMethodsLoader;
     }
 
-    public function injectSpecialOptionsService(SpecialOptionsServiceInterface $specialOptionsService): void
+    public function injectSpecialOptionsService(SpecialOptionsLoaderInterface $specialOptionsLoader): void
     {
-        $this->specialOptionsService = $specialOptionsService;
+        $this->specialOptionsLoader = $specialOptionsLoader;
     }
 
     public function initializeAction(): void
@@ -68,14 +72,7 @@ public function initializeAction(): void
             ConfigurationManager::CONFIGURATION_TYPE_FRAMEWORK
         );
 
-        $this->settings['addToCartByAjax'] = isset($this->settings['addToCartByAjax']) ? (int)$this->settings['addToCartByAjax'] : 0;
-    }
-
-    protected function parseServices(): void
-    {
-        $this->payments = $this->paymentMethodsService->getPaymentMethods($this->cart);
-        $this->shippings = $this->shippingMethodsService->getShippingMethods($this->cart);
-        $this->specials = $this->specialOptionsService->getSpecialOptions($this->cart);
+        $this->settings['addToCartByAjax'] = isset($this->settings['addToCartByAjax']) ? (int) $this->settings['addToCartByAjax'] : 0;
     }
 
     public function parseServicesAndAssignToView(): void
@@ -91,6 +88,13 @@ public function parseServicesAndAssignToView(): void
         );
     }
 
+    protected function parseServices(): void
+    {
+        $this->payments = $this->paymentMethodsLoader->getPaymentMethods($this->cart);
+        $this->shippings = $this->shippingMethodsLoader->getShippingMethods($this->cart);
+        $this->specials = $this->specialOptionsLoader->getSpecialOptions($this->cart);
+    }
+
     protected function restoreSession(): void
     {
         $cart = $this->sessionHandler->restoreCart($this->settings['cart']['pid']);
diff --git a/Classes/Controller/Cart/CartController.php b/Classes/Controller/Cart/CartController.php
index de0e7a34..385f8bb8 100755
--- a/Classes/Controller/Cart/CartController.php
+++ b/Classes/Controller/Cart/CartController.php
@@ -11,11 +11,13 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Extcode\Cart\Domain\Model\Order\BillingAddress;
 use Extcode\Cart\Domain\Model\Order\Item;
 use Extcode\Cart\Domain\Model\Order\ShippingAddress;
 use Extcode\Cart\Event\Cart\BeforeShowCartEvent;
 use Extcode\Cart\Event\CheckProductAvailabilityEvent;
+use InvalidArgumentException;
 use Psr\Http\Message\ResponseInterface;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Mvc\ExtbaseRequestParameters;
@@ -24,8 +26,8 @@ class CartController extends ActionController
 {
     public function showAction(
         ?Item $orderItem = null,
-        ?BillingAddress $billingAddress = null,
-        ?ShippingAddress $shippingAddress = null
+        ?AddressInterface $billingAddress = null,
+        ?AddressInterface $shippingAddress = null
     ): ResponseInterface {
         $this->restoreSession();
 
@@ -60,7 +62,7 @@ public function showAction(
                 $originalRequestOrderItem = $extbaseAttribute->getOriginalRequest()->getArgument('orderItem');
 
                 if (isset($originalRequestOrderItem['shippingSameAsBilling'])) {
-                    $this->cart->setShippingSameAsBilling((bool)$originalRequestOrderItem['shippingSameAsBilling']);
+                    $this->cart->setShippingSameAsBilling((bool) $originalRequestOrderItem['shippingSameAsBilling']);
                     $this->sessionHandler->writeCart($this->settings['cart']['pid'], $this->cart);
                 }
             }
@@ -69,7 +71,12 @@ public function showAction(
             $this->sessionHandler->writeCart($this->settings['cart']['pid'], $this->cart);
         }
 
-        $beforeShowCartEvent = new BeforeShowCartEvent($this->cart, $orderItem, $billingAddress, $shippingAddress);
+        $beforeShowCartEvent = new BeforeShowCartEvent(
+            $this->cart,
+            $orderItem,
+            $billingAddress,
+            $shippingAddress
+        );
         $this->eventDispatcher->dispatch($beforeShowCartEvent);
 
         $orderItem = $beforeShowCartEvent->getOrderItem();
@@ -91,7 +98,7 @@ public function showAction(
 
         $currentStep = null;
         if ($this->request->hasArgument('step')) {
-            $currentStep = (int)$this->request->getArgument('step');
+            $currentStep = (int) $this->request->getArgument('step');
         }
 
         $currentStepHasError = false;
@@ -117,7 +124,6 @@ public function showAction(
         $this->dispatchModifyViewEvent();
 
         return $this->htmlResponse($this->view->render($template));
-
     }
 
     public function clearAction(): ResponseInterface
@@ -152,7 +158,7 @@ public function updateAction(): ResponseInterface
                     if (is_array($quantity)) {
                         $cartProduct->changeQuantities($quantity);
                     } else {
-                        $cartProduct->changeQuantity((int)$quantity);
+                        $cartProduct->changeQuantity((int) $quantity);
                     }
                 } else {
                     foreach ($checkAvailabilityEvent->getMessages() as $message) {
@@ -177,7 +183,7 @@ public function updateAction(): ResponseInterface
 
     private function getTemplateForShowAction(): string
     {
-        $steps = (int)($this->settings['cart']['steps'] ?? 1);
+        $steps = (int) ($this->settings['cart']['steps'] ?? 1);
 
         if ($steps === 1) {
             return 'Show';
@@ -185,11 +191,11 @@ private function getTemplateForShowAction(): string
 
         $currentStep = 1;
         if ($this->request->hasArgument('step')) {
-            $currentStep = (int)$this->request->getArgument('step') ?: 1;
+            $currentStep = (int) $this->request->getArgument('step') ?: 1;
         }
 
         if ($currentStep > $steps) {
-            throw new \InvalidArgumentException();
+            throw new InvalidArgumentException();
         }
 
         if ($currentStep < $steps) {
diff --git a/Classes/Controller/Cart/CountryController.php b/Classes/Controller/Cart/CountryController.php
index 6c03cb26..fc29e21e 100644
--- a/Classes/Controller/Cart/CountryController.php
+++ b/Classes/Controller/Cart/CountryController.php
@@ -4,7 +4,7 @@
 
 namespace Extcode\Cart\Controller\Cart;
 
-use Extcode\Cart\Service\TaxClassServiceInterface;
+use Extcode\Cart\Configuration\Loader\TaxClassLoaderInterface;
 use Psr\Http\Message\ResponseInterface;
 
 /*
@@ -16,18 +16,23 @@
 class CountryController extends ActionController
 {
     public function __construct(
-        protected TaxClassServiceInterface $taxClassService
-    ) {}
+        protected TaxClassLoaderInterface $taxClassLoader
+    ) {
+    }
 
     public function updateAction(): ResponseInterface
     {
-        //ToDo check country is allowed by TypoScript
+        // ToDo check country is allowed by TypoScript
 
-        $this->cartUtility->updateCountry($this->settings['cart'], $this->configurations, $this->request);
+        $this->cartUtility->updateCountry(
+            $this->settings['cart'],
+            $this->configurations,
+            $this->request
+        );
 
         $this->restoreSession();
 
-        $taxClasses = $this->taxClassService->getTaxClasses($this->cart->getBillingCountry());
+        $taxClasses = $this->taxClassLoader->getTaxClasses($this->cart->getBillingCountry());
 
         $this->cart->setTaxClasses($taxClasses);
         $this->cart->reCalc();
diff --git a/Classes/Controller/Cart/CouponController.php b/Classes/Controller/Cart/CouponController.php
index b17c2283..db77314a 100644
--- a/Classes/Controller/Cart/CouponController.php
+++ b/Classes/Controller/Cart/CouponController.php
@@ -23,7 +23,8 @@ class CouponController extends ActionController
 {
     public function __construct(
         protected CouponRepository $couponRepository
-    ) {}
+    ) {
+    }
 
     public function addAction(): ResponseInterface
     {
diff --git a/Classes/Controller/Cart/CurrencyController.php b/Classes/Controller/Cart/CurrencyController.php
index a0868958..f0c92b2b 100644
--- a/Classes/Controller/Cart/CurrencyController.php
+++ b/Classes/Controller/Cart/CurrencyController.php
@@ -16,15 +16,21 @@
 class CurrencyController extends ActionController
 {
     public const AJAX_CART_TYPE_NUM = '2278001';
+
     public const AJAX_CURRENCY_TYPE_NUM = '2278003';
 
     public function __construct(
         protected CurrencyUtility $currencyUtility
-    ) {}
+    ) {
+    }
 
     public function updateAction(): ResponseInterface
     {
-        $this->currencyUtility->updateCurrency($this->settings['cart'], $this->configurations, $this->request);
+        $this->currencyUtility->updateCurrency(
+            $this->settings['cart'],
+            $this->configurations,
+            $this->request
+        );
 
         $this->restoreSession();
 
diff --git a/Classes/Controller/Cart/OrderController.php b/Classes/Controller/Cart/OrderController.php
index fb01571d..77ba5b2a 100644
--- a/Classes/Controller/Cart/OrderController.php
+++ b/Classes/Controller/Cart/OrderController.php
@@ -10,6 +10,7 @@
  * For the full copyright and license information, please read the
  * LICENSE file that was distributed with this source code.
  */
+
 use Extcode\Cart\Domain\Model\Order\BillingAddress;
 use Extcode\Cart\Domain\Model\Order\Item;
 use Extcode\Cart\Domain\Model\Order\ShippingAddress;
@@ -21,26 +22,15 @@
 use Extcode\Cart\Event\Order\StockEvent;
 use Extcode\Cart\Event\ProcessOrderCheckStockEvent;
 use Extcode\Cart\Validation\Validator\EmptyValidator;
-use Psr\EventDispatcher\StoppableEventInterface;
 use Psr\Http\Message\ResponseInterface;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Annotation\IgnoreValidation;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 use TYPO3\CMS\Extbase\Validation\Validator\AbstractGenericObjectValidator;
 use TYPO3\CMS\Extbase\Validation\Validator\ConjunctionValidator;
 use TYPO3\CMS\Extbase\Validation\Validator\GenericObjectValidator;
-use TYPO3\CMS\Extbase\Validation\ValidatorResolver;
 
 class OrderController extends ActionController
 {
-    protected function getErrorFlashMessage(): bool|string
-    {
-        return LocalizationUtility::translate(
-            'tx_cart.error.validation',
-            'Cart'
-        ) ?? false;
-    }
-
     public function initializeCreateAction(): void
     {
         foreach (['orderItem', 'billingAddress', 'shippingAddress'] as $argumentName) {
@@ -51,7 +41,8 @@ public function initializeCreateAction(): void
 
             $this->arguments->getArgument($argumentName)
                 ->getPropertyMappingConfiguration()
-                ->setTargetTypeForSubProperty('additional', 'array');
+                ->setTargetTypeForSubProperty('additional', 'array')
+            ;
         }
     }
 
@@ -63,21 +54,27 @@ public function createAction(
     ): ResponseInterface {
         $this->restoreSession();
 
-        if (!is_null($billingAddress)) {
+        if ($billingAddress instanceof BillingAddress) {
             $this->sessionHandler->writeAddress('billing_address_' . $this->settings['cart']['pid'], $billingAddress);
         } else {
             $billingAddress = $this->sessionHandler->restoreAddress('billing_address_' . $this->settings['cart']['pid']);
         }
-        if (!is_null($shippingAddress)) {
+        if ($shippingAddress instanceof ShippingAddress) {
             $this->sessionHandler->writeAddress('shipping_address_' . $this->settings['cart']['pid'], $shippingAddress);
         } else {
             $shippingAddress = $this->sessionHandler->restoreAddress('shipping_address_' . $this->settings['cart']['pid']);
-            if (!$shippingAddress) {
-                $shippingAddress = new ShippingAddress();
-            }
         }
 
-        if (is_null($orderItem) || is_null($billingAddress) || $this->cart->getCount() === 0) {
+        if (($orderItem instanceof Item) === false
+                || ($billingAddress instanceof BillingAddress) === false
+            || $this->cart->getCount() === 0
+        ) {
+            return $this->redirect('show', 'Cart\Cart');
+        }
+
+        if ($orderItem->isShippingSameAsBilling() === false
+                && ($shippingAddress instanceof ShippingAddress) === false
+        ) {
             return $this->redirect('show', 'Cart\Cart');
         }
 
@@ -95,10 +92,10 @@ public function createAction(
             return $this->redirect('show', 'Cart\Cart');
         }
 
-        $orderItem->setCartPid((int)$this->settings['cart']['pid']);
+        $orderItem->setCartPid($this->getCartPidFromSettings());
 
         // add billing and shipping address to order
-        $storagePid = (int)$this->settings['order']['pid'];
+        $storagePid = $this->getOrderPidFromSettings();
         $billingAddress->setPid($storagePid);
         $orderItem->setBillingAddress($billingAddress);
 
@@ -106,6 +103,9 @@ public function createAction(
             $shippingAddress = null;
             $orderItem->removeShippingAddress();
         } else {
+            if (($shippingAddress instanceof ShippingAddress) === false) {
+                $shippingAddress = new ShippingAddress();
+            }
             $shippingAddress->setPid($storagePid);
             $orderItem->setShippingAddress($shippingAddress);
         }
@@ -122,10 +122,14 @@ public function createAction(
         $this->view->assign('orderItem', $orderItem);
 
         $paymentId = $this->cart->getPayment()->getId();
-        $paymentSettings = $this->paymentMethodsService->getConfigurationsForType('payments', $this->cart->getBillingCountry());
+        $paymentSettings = $this->paymentMethodsLoader->getPaymentMethods($this->cart);
 
         if (isset($paymentSettings['options'][$paymentId]['redirects']['success']['url'])) {
-            $this->redirectToUri($paymentSettings['options'][$paymentId]['redirects']['success']['url'], 0, 200);
+            return $this->redirectToUri(
+                $paymentSettings['options'][$paymentId]['redirects']['success']['url'],
+                null,
+                200
+            );
         }
 
         $this->dispatchModifyViewEvent();
@@ -162,6 +166,14 @@ public function setDynamicValidationsForArgument(string $argumentName): void
         }
     }
 
+    protected function getErrorFlashMessage(): bool|string
+    {
+        return LocalizationUtility::translate(
+            'tx_cart.error.validation',
+            'Cart'
+        ) ?? false;
+    }
+
     /**
      * Sets the dynamic validation rules.
      */
@@ -171,9 +183,7 @@ protected function setDynamicValidation(
         array $validatorConf
     ): void {
         // build custom validation chain
-        $validatorResolver = GeneralUtility::makeInstance(
-            ValidatorResolver::class
-        );
+        $validatorResolver = $this->validatorResolver;
 
         if ($validatorConf['validator'] === 'Empty') {
             $validatorConf['validator'] = EmptyValidator::class;
@@ -209,39 +219,55 @@ protected function dispatchOrderCreateEvents(Item $orderItem): bool
     {
         $createEvent = new CreateEvent($this->cart, $orderItem, $this->configurations);
         $this->eventDispatcher->dispatch($createEvent);
-        if ($createEvent instanceof StoppableEventInterface && $createEvent->isPropagationStopped()) {
+        if ($createEvent->isPropagationStopped()) {
             return true;
         }
 
         $onlyGenerateNumberOfType = [];
         if (!empty($this->configurations['autoGenerateNumbers'])) {
-            $onlyGenerateNumberOfType = array_map('trim', explode(',', (string)$this->configurations['autoGenerateNumbers']));
+            $onlyGenerateNumberOfType = array_map(trim(...), explode(',', (string) $this->configurations['autoGenerateNumbers']));
         }
         $generateNumbersEvent = new NumberGeneratorEvent($this->cart, $orderItem, $this->configurations);
         $generateNumbersEvent->setOnlyGenerateNumberOfType($onlyGenerateNumberOfType);
         $this->eventDispatcher->dispatch($generateNumbersEvent);
-        if ($generateNumbersEvent instanceof StoppableEventInterface && $generateNumbersEvent->isPropagationStopped()) {
+        if ($generateNumbersEvent->isPropagationStopped()) {
             return true;
         }
 
         $stockEvent = new StockEvent($this->cart, $orderItem, $this->configurations);
         $this->eventDispatcher->dispatch($stockEvent);
-        if ($stockEvent instanceof StoppableEventInterface && $stockEvent->isPropagationStopped()) {
+        if ($stockEvent->isPropagationStopped()) {
             return true;
         }
 
         $paymentEvent = new PaymentEvent($this->cart, $orderItem, $this->configurations);
         $this->eventDispatcher->dispatch($paymentEvent);
-        if ($paymentEvent instanceof StoppableEventInterface && $paymentEvent->isPropagationStopped()) {
+        if ($paymentEvent->isPropagationStopped()) {
             return true;
         }
 
         $finishEvent = new FinishEvent($this->cart, $orderItem, $this->configurations);
         $this->eventDispatcher->dispatch($finishEvent);
-        if ($finishEvent instanceof StoppableEventInterface && $finishEvent->isPropagationStopped()) {
-            return true;
+
+        return (bool) ($finishEvent->isPropagationStopped());
+    }
+
+    /**
+     * @return int<0, max>
+     */
+    private function getOrderPidFromSettings(): int
+    {
+        $orderPid = (int) ($this->settings['order']['pid'] ?? 0);
+
+        if ($orderPid < 0) {
+            $orderPid = 0;
         }
 
-        return false;
+        return $orderPid;
+    }
+
+    private function getCartPidFromSettings(): int
+    {
+        return (int) $this->settings['cart']['pid'];
     }
 }
diff --git a/Classes/Controller/Cart/PaymentController.php b/Classes/Controller/Cart/PaymentController.php
index c16ec2dc..14a8c381 100644
--- a/Classes/Controller/Cart/PaymentController.php
+++ b/Classes/Controller/Cart/PaymentController.php
@@ -23,14 +23,14 @@ public function updateAction(int $paymentId): ResponseInterface
     {
         $this->updatePaymentInSession($paymentId);
 
-        if ($this->isAjaxRequest()) {
+        if (self::isAjaxRequest()) {
             return $this->renderHtmlResponse();
         }
 
         return $this->redirect('show', 'Cart\Cart');
     }
 
-    private function isAjaxRequest(): bool
+    private static function isAjaxRequest(): bool
     {
         $pageType = $GLOBALS['TYPO3_REQUEST']->getAttribute('routing')->getPageType();
 
@@ -51,7 +51,7 @@ private function updatePaymentInSession(int $paymentId): void
     {
         $this->restoreSession();
 
-        $payments = $this->paymentMethodsService->getPaymentMethods($this->cart);
+        $payments = $this->paymentMethodsLoader->getPaymentMethods($this->cart);
         $payment = $payments[$paymentId] ?? null;
 
         if (is_null($payment) || $payment->isAvailable() === false) {
diff --git a/Classes/Controller/Cart/ProductController.php b/Classes/Controller/Cart/ProductController.php
index b93dc4b5..448204ab 100644
--- a/Classes/Controller/Cart/ProductController.php
+++ b/Classes/Controller/Cart/ProductController.php
@@ -11,6 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Exception;
 use Extcode\Cart\Domain\Model\Cart\Product;
 use Extcode\Cart\Event\CheckProductAvailabilityEvent;
 use Extcode\Cart\Event\RetrieveProductsFromRequestEvent;
@@ -27,7 +28,7 @@ public function addAction(): ResponseInterface
     {
         if (!$this->request->hasArgument('productType')) {
             // TODO: add own Exception
-            throw new \Exception('productType is needed');
+            throw new Exception('productType is needed', 5200281451);
         }
 
         $this->restoreSession();
@@ -154,7 +155,7 @@ private function responseForAddAction(array $cartProducts, int $quantity): Respo
      */
     private function responseForAddActionWithErrors(array $errors): ResponseInterface
     {
-        $errorWithHighestSeverity = $this->getErrorWithHighestSeverity($errors);
+        $errorWithHighestSeverity = self::getErrorWithHighestSeverity($errors);
 
         $pageType = $GLOBALS['TYPO3_REQUEST']->getAttribute('routing')->getPageType();
         if ($pageType === self::AJAX_CART_TYPE_NUM) {
@@ -183,7 +184,7 @@ private function responseForAddActionWithErrors(array $errors): ResponseInterfac
     /**
      * @param FlashMessage[] $errors
      */
-    private function getErrorWithHighestSeverity(array $errors): FlashMessage
+    private static function getErrorWithHighestSeverity(array $errors): FlashMessage
     {
         $errorToReturn = array_shift($errors);
 
diff --git a/Classes/Controller/Cart/ShippingController.php b/Classes/Controller/Cart/ShippingController.php
index 4690a1b7..7bbdcda0 100644
--- a/Classes/Controller/Cart/ShippingController.php
+++ b/Classes/Controller/Cart/ShippingController.php
@@ -23,14 +23,14 @@ public function updateAction(int $shippingId): ResponseInterface
     {
         $this->updateShippingInSession($shippingId);
 
-        if ($this->isAjaxRequest()) {
+        if (self::isAjaxRequest()) {
             return $this->renderHtmlResponse();
         }
 
         return $this->redirect('show', 'Cart\Cart');
     }
 
-    private function isAjaxRequest(): bool
+    private static function isAjaxRequest(): bool
     {
         $pageType = $GLOBALS['TYPO3_REQUEST']->getAttribute('routing')->getPageType();
 
@@ -51,7 +51,7 @@ private function updateShippingInSession(int $shippingId): void
     {
         $this->restoreSession();
 
-        $shippings = $this->shippingMethodsService->getShippingMethods($this->cart);
+        $shippings = $this->shippingMethodsLoader->getShippingMethods($this->cart);
         $shipping = $shippings[$shippingId] ?? null;
 
         if (is_null($shipping) || $shipping->isAvailable() === false) {
diff --git a/Classes/Controller/Order/OrderController.php b/Classes/Controller/Order/OrderController.php
index bd3316b7..0d4a223e 100644
--- a/Classes/Controller/Order/OrderController.php
+++ b/Classes/Controller/Order/OrderController.php
@@ -27,19 +27,13 @@
 class OrderController extends ActionController
 {
     protected array $searchArguments = [];
+
     protected array $pluginSettings;
 
     public function __construct(
         private readonly Context $context,
         protected ItemRepository $itemRepository
-    ) {}
-
-    protected function initializeAction(): void
-    {
-        $this->pluginSettings
-            = $this->configurationManager->getConfiguration(
-                ConfigurationManager::CONFIGURATION_TYPE_FRAMEWORK
-            );
+    ) {
     }
 
     public function listAction(int $currentPage = 1): ResponseInterface
@@ -49,7 +43,7 @@ public function listAction(int $currentPage = 1): ResponseInterface
         $feUserUid = $this->context->getPropertyFromAspect('frontend.user', 'id');
         $orderItems = $this->itemRepository->findBy(['feUser' => $feUserUid]);
 
-        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int)$this->settings['itemsPerPage'] : 20;
+        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int) $this->settings['itemsPerPage'] : 20;
 
         $arrayPaginator = new QueryResultPaginator(
             $orderItems,
@@ -81,6 +75,7 @@ public function showAction(Item $orderItem): ResponseInterface
                 '',
                 ContextualFeedbackSeverity::ERROR
             );
+
             return $this->redirect('list');
         }
 
@@ -113,4 +108,12 @@ public function showAction(Item $orderItem): ResponseInterface
 
         return $this->htmlResponse();
     }
+
+    protected function initializeAction(): void
+    {
+        $this->pluginSettings
+            = $this->configurationManager->getConfiguration(
+                ConfigurationManager::CONFIGURATION_TYPE_FRAMEWORK
+            );
+    }
 }
diff --git a/Classes/Domain/Finisher/Form/AddToCartFinisher.php b/Classes/Domain/Finisher/Form/AddToCartFinisher.php
index 864c68b3..fcb848c0 100644
--- a/Classes/Domain/Finisher/Form/AddToCartFinisher.php
+++ b/Classes/Domain/Finisher/Form/AddToCartFinisher.php
@@ -37,7 +37,9 @@ public function __construct(
         protected ConfigurationManagerInterface $configurationManager,
         protected SessionHandler $sessionHandler,
         protected CartUtility $cartUtility,
-        protected EventDispatcherInterface $eventDispatcher
+        protected EventDispatcherInterface $eventDispatcher,
+        private readonly ExtensionService $extensionService,
+        private readonly FlashMessageService $flashMessageService
     ) {
         $this->configurations = $this->configurationManager->getConfiguration(
             ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK,
@@ -79,7 +81,7 @@ protected function executeInternal(): ?string
             $severity = ContextualFeedbackSeverity::OK;
 
             $pageType = $GLOBALS['TYPO3_REQUEST']->getAttribute('routing')->getPageType();
-            if (in_array((int)$pageType, $this->configurations['settings']['jsonResponseForPageTypes'])) {
+            if (in_array((int) $pageType, $this->configurations['settings']['jsonResponseForPageTypes'])) {
                 $payload = [
                     'status' => $status,
                     'added' => $quantity,
@@ -96,21 +98,22 @@ protected function executeInternal(): ?string
                 $response = $this->finisherContext->getFormRuntime()->getResponse()
                     ->withAddedHeader('Content-Type', 'application/json; charset=utf-8')
                     ->withBody($stream)
-                    ->withStatus((int)$status);
+                    ->withStatus((int) $status)
+                ;
 
-                /** @see \TYPO3\CMS\Form\Domain\Finishers\RedirectFinisher::redirectToUri */
+                // @see \TYPO3\CMS\Form\Domain\Finishers\RedirectFinisher::redirectToUri
                 throw new PropagateResponseException($response, 1655984985);
             }
             $flashMessage = GeneralUtility::makeInstance(
                 FlashMessage::class,
-                (string)$messageBody,
-                (string)$messageTitle,
+                (string) $messageBody,
+                (string) $messageTitle,
                 $severity,
                 true
             );
 
-            $extensionService = GeneralUtility::makeInstance(ExtensionService::class);
-            $flashMessageService = GeneralUtility::makeInstance(FlashMessageService::class);
+            $extensionService = $this->extensionService;
+            $flashMessageService = $this->flashMessageService;
 
             // todo: this value has to be taken from the request directly in the future
             $pluginNamespace = $extensionService->getPluginNamespace(
@@ -136,6 +139,7 @@ protected function getHoneypotIdentifier(): string
                 return $renderable->getIdentifier();
             }
         }
+
         return '';
     }
 
@@ -149,6 +153,7 @@ protected function addProductsToCart(array $products): int
                 $this->cart->addProduct($product);
             }
         }
+
         return $quantity;
     }
 
@@ -164,6 +169,7 @@ protected function getStatusMessageBody(array $formValues, $status = '200'): ?st
                 'Cart'
             );
         }
+
         return $messageBody;
     }
 
@@ -179,6 +185,7 @@ protected function getStatusMessageTitle(array $formValues, $status = '200'): ?s
                 'Cart'
             );
         }
+
         return $messageTitle;
     }
 }
diff --git a/Classes/Domain/Log/DatabaseWriter.php b/Classes/Domain/Log/DatabaseWriter.php
new file mode 100644
index 00000000..863d2711
--- /dev/null
+++ b/Classes/Domain/Log/DatabaseWriter.php
@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log;
+
+use Extcode\Cart\Domain\Log\Model\LogInterface;
+use Extcode\Cart\Domain\Log\Repository\LogRepository;
+use TYPO3\CMS\Core\Log\LogRecord;
+use TYPO3\CMS\Core\Log\Writer\AbstractWriter;
+use TYPO3\CMS\Core\Log\Writer\WriterInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use Throwable;
+
+final class DatabaseWriter extends AbstractWriter
+{
+    public function writeLog(LogRecord $record): WriterInterface
+    {
+        $recordData = $record->getData();
+
+        $log = $recordData['log'] ?? null;
+        if (($log instanceof LogInterface) === false) {
+            return $this;
+        }
+        unset($recordData['log']);
+
+        $fieldValues = [
+            'log_level' => $log->getLogLevel()->value,
+            'item' => $log->getOrderItemId(),
+            'type' => $log->getType(),
+            'message' => $log->getMessage(),
+            'arguments' => $this->jsonEncodeWithThrowable($log->getArguments()),
+            'request_id' => $record->getRequestId(),
+            'time_micro' => $record->getCreated(),
+            'level' => $record->getLevel(),
+            'data' => $this->jsonEncodeWithThrowable($recordData),
+        ];
+
+        $logRepository = GeneralUtility::makeInstance(LogRepository::class);
+        $logRepository->insert($fieldValues);
+
+        return $this;
+    }
+
+    public function jsonEncodeWithThrowable(array $dataToEncode): string
+    {
+        $data = '';
+        if (!empty($dataToEncode)) {
+            // Fold an exception into the message, and string-ify it into recordData so it can be jsonified.
+            if (isset($dataToEncode['exception']) && $dataToEncode['exception'] instanceof Throwable) {
+                $dataToEncode['exception'] = (string) $dataToEncode['exception'];
+            }
+            $data = '- ' . json_encode($dataToEncode);
+        }
+
+        return $data;
+    }
+}
diff --git a/Classes/Domain/Log/LogService.php b/Classes/Domain/Log/LogService.php
new file mode 100644
index 00000000..71959c60
--- /dev/null
+++ b/Classes/Domain/Log/LogService.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log;
+
+use Extcode\Cart\Domain\Log\Model\LogInterface;
+use Psr\Log\LoggerInterface;
+
+final readonly class LogService implements LogServiceInterface
+{
+    public function __construct(
+        private LoggerInterface $logger,
+    ) {
+    }
+
+    public function write(
+        LogInterface $log
+    ): void {
+        $this->logger->log(
+            $log->getLogLevel()->value,
+            $log->getMessage(),
+            [
+                'log' => $log,
+            ]
+        );
+    }
+}
diff --git a/Classes/Domain/Log/LogServiceInterface.php b/Classes/Domain/Log/LogServiceInterface.php
new file mode 100644
index 00000000..9d45842e
--- /dev/null
+++ b/Classes/Domain/Log/LogServiceInterface.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log;
+
+use Extcode\Cart\Domain\Log\Model\LogInterface;
+
+interface LogServiceInterface
+{
+    public function write(LogInterface $log): void;
+}
diff --git a/Classes/Domain/Log/Model/Log.php b/Classes/Domain/Log/Model/Log.php
new file mode 100644
index 00000000..ddff6eab
--- /dev/null
+++ b/Classes/Domain/Log/Model/Log.php
@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log\Model;
+
+final readonly class Log implements LogInterface
+{
+    public function __construct(
+        private LogLevel $logLevel,
+        private int $orderItemId,
+        private string $type,
+        private string $message,
+        private array $arguments = [],
+    ) {
+    }
+
+    public static function info(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self {
+        return new self(
+            LogLevel::INFO,
+            $orderItemId,
+            $type,
+            $message,
+            $arguments,
+        );
+    }
+
+    public static function notice(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self {
+        return new self(
+            LogLevel::NOTICE,
+            $orderItemId,
+            $type,
+            $message,
+            $arguments,
+        );
+    }
+
+    public static function warning(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self {
+        return new self(
+            LogLevel::WARNING,
+            $orderItemId,
+            $type,
+            $message,
+            $arguments,
+        );
+    }
+
+    public static function error(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self {
+        return new self(
+            LogLevel::ERROR,
+            $orderItemId,
+            $type,
+            $message,
+            $arguments,
+        );
+    }
+
+    public function getLogLevel(): LogLevel
+    {
+        return $this->logLevel;
+    }
+
+    public function getOrderItemId(): int
+    {
+        return $this->orderItemId;
+    }
+
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    public function getMessage(): string
+    {
+        return $this->message;
+    }
+
+    public function getArguments(): array
+    {
+        return $this->arguments;
+    }
+}
diff --git a/Classes/Domain/Log/Model/LogInterface.php b/Classes/Domain/Log/Model/LogInterface.php
new file mode 100644
index 00000000..bb4ce8a8
--- /dev/null
+++ b/Classes/Domain/Log/Model/LogInterface.php
@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log\Model;
+
+interface LogInterface
+{
+    public function __construct(
+        LogLevel $logLevel,
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    );
+
+    public static function info(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self;
+
+    public static function notice(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self;
+
+    public static function warning(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self;
+
+    public static function error(
+        int $orderItemId,
+        string $type,
+        string $message,
+        array $arguments = [],
+    ): self;
+
+    public function getLogLevel(): LogLevel;
+
+    public function getOrderItemId(): int;
+
+    public function getType(): string;
+
+    public function getMessage(): string;
+
+    public function getArguments(): array;
+}
diff --git a/Classes/Domain/Log/Model/LogLevel.php b/Classes/Domain/Log/Model/LogLevel.php
new file mode 100644
index 00000000..e5fe3667
--- /dev/null
+++ b/Classes/Domain/Log/Model/LogLevel.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log\Model;
+
+use Psr\Log\LogLevel as PsrLogLevel;
+
+enum LogLevel: string
+{
+    case EMERGENCY = PsrLogLevel::EMERGENCY;
+    case ALERT = PsrLogLevel::ALERT;
+    case CRITICAL = PsrLogLevel::CRITICAL;
+    case ERROR = PsrLogLevel::ERROR;
+    case WARNING = PsrLogLevel::WARNING;
+    case NOTICE = PsrLogLevel::NOTICE;
+    case INFO = PsrLogLevel::INFO;
+    case DEBUG = PsrLogLevel::DEBUG;
+}
diff --git a/Classes/Domain/Log/Repository/LogRepository.php b/Classes/Domain/Log/Repository/LogRepository.php
new file mode 100644
index 00000000..65486e29
--- /dev/null
+++ b/Classes/Domain/Log/Repository/LogRepository.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Log\Repository;
+
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Database\Query\QueryBuilder;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+final readonly class LogRepository
+{
+    public const TABLE_NAME = 'tx_cart_domain_model_order_log';
+
+    private QueryBuilder $queryBuilder;
+
+    public function __construct(
+    ) {
+        $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
+        $this->queryBuilder = $connectionPool
+            ->getQueryBuilderForTable(self::TABLE_NAME)
+        ;
+    }
+
+    public function insert(
+        array $fieldValues,
+    ): void {
+        // for cleanup of table
+        $fieldValues['crdate'] = time();
+
+        $queryBuilder = clone $this->queryBuilder;
+        $queryBuilder
+            ->insert(self::TABLE_NAME)
+            ->values($fieldValues)
+            ->executeStatement()
+        ;
+    }
+
+    public function findAllByIdentifier(
+        string $identifier,
+    ): array {
+        $queryBuilder = clone $this->queryBuilder;
+        $queryBuilder
+            ->select('*')
+            ->from(self::TABLE_NAME)
+            ->where(
+                $queryBuilder->expr()->eq(
+                    'identifier',
+                    $queryBuilder->createNamedParameter($identifier)
+                )
+            )
+        ;
+
+        return $queryBuilder
+            ->executeQuery()
+            ->fetchAllAssociative()
+        ;
+    }
+}
diff --git a/Classes/Domain/Model/Cart/AbstractCartCoupon.php b/Classes/Domain/Model/Cart/AbstractCartCoupon.php
index 1aa937eb..7035f8b9 100644
--- a/Classes/Domain/Model/Cart/AbstractCartCoupon.php
+++ b/Classes/Domain/Model/Cart/AbstractCartCoupon.php
@@ -25,8 +25,6 @@ abstract class AbstractCartCoupon implements CartCouponInterface
 
     protected bool $isCombinable = false;
 
-    protected bool $isRelativeDiscount = false;
-
     public function setCart(Cart $cart): void
     {
         $this->cart = $cart;
@@ -42,11 +40,6 @@ public function getCode(): string
         return $this->code;
     }
 
-    public function getCouponType(): string
-    {
-        return $this->couponType;
-    }
-
     public function getCartMinPrice(): float
     {
         return $this->cartMinPrice;
@@ -57,11 +50,6 @@ public function isCombinable(): bool
         return $this->isCombinable;
     }
 
-    public function isRelativeDiscount(): bool
-    {
-        return $this->isRelativeDiscount;
-    }
-
     public function isUseable(): bool
     {
         return $this->cartMinPrice <= $this->cart->getGross();
diff --git a/Classes/Domain/Model/Cart/AdditionalDataTrait.php b/Classes/Domain/Model/Cart/AdditionalDataTrait.php
index 13e113ad..c03502a3 100644
--- a/Classes/Domain/Model/Cart/AdditionalDataTrait.php
+++ b/Classes/Domain/Model/Cart/AdditionalDataTrait.php
@@ -41,7 +41,7 @@ public function unsetAdditionals(): void
 
     public function getAdditional(string $key): mixed
     {
-        return $this->additionals[$key];
+        return $this->additionals[$key] ?? null;
     }
 
     public function setAdditional(string $key, mixed $value): void
diff --git a/Classes/Domain/Model/Cart/BeVariant.php b/Classes/Domain/Model/Cart/BeVariant.php
index 98748db6..777119e2 100644
--- a/Classes/Domain/Model/Cart/BeVariant.php
+++ b/Classes/Domain/Model/Cart/BeVariant.php
@@ -4,6 +4,8 @@
 
 namespace Extcode\Cart\Domain\Model\Cart;
 
+use InvalidArgumentException;
+
 /*
  * This file is part of the package extcode/cart.
  *
@@ -125,11 +127,9 @@ public function getTitle(): string
 
     public function getCompleteTitle(): string
     {
-        $title = '';
-
         if ($this->parent instanceof BeVariantInterface) {
             $title = $this->parent->getCompleteTitle();
-        } elseif ($this->parent instanceof ProductInterface) {
+        } else {
             $title = $this->parent->getTitle();
         }
 
@@ -203,9 +203,10 @@ public function getDiscount(): float
     public function getSpecialPriceDiscount(): float
     {
         $discount = 0.0;
-        if (($this->price != 0.0) && ($this->specialPrice)) {
+        if (($this->price != 0.0) && $this->specialPrice) {
             $discount = (($this->price - $this->specialPrice) / $this->price) * 100;
         }
+
         return $discount;
     }
 
@@ -215,10 +216,8 @@ public function getPriceCalculated(): float
 
         if ($this->parent instanceof BeVariantInterface) {
             $parentPrice = $this->parent->getBestPrice();
-        } elseif ($this->parent instanceof ProductInterface) {
-            $parentPrice = $this->parent->getBestPrice($this->getQuantity());
         } else {
-            $parentPrice = 0.0;
+            $parentPrice = $this->parent->getBestPrice($this->getQuantity());
         }
 
         if ($this->priceCalcMethod === 0) {
@@ -240,7 +239,7 @@ public function getPriceCalculated(): float
             return $parentPrice + (($price / 100) * $parentPrice);
         }
 
-        throw new \InvalidArgumentException('Unkonwn price calc method', 1711969492);
+        throw new InvalidArgumentException('Unkonwn price calc method', 1711969492);
     }
 
     public function getBestPriceCalculated(): float
@@ -295,11 +294,9 @@ public function getSku(): string
 
     public function getCompleteSku(): string
     {
-        $sku = '';
-
         if ($this->parent instanceof BeVariantInterface) {
             $sku = $this->parent->getCompleteSku();
-        } elseif ($this->parent instanceof ProductInterface) {
+        } else {
             $sku = $this->parent->getSku();
         }
 
@@ -419,10 +416,7 @@ public function getBeVariantById(int $beVariantId): ?BeVariantInterface
         return $this->beVariants[$beVariantId] ?? null;
     }
 
-    /**
-     * @return bool|int
-     */
-    public function removeBeVariants(array $beVariantsArray)
+    public function removeBeVariants(array $beVariantsArray): bool|int
     {
         foreach ($beVariantsArray as $beVariantId => $value) {
             $beVariant = $this->beVariants[$beVariantId];
@@ -433,7 +427,6 @@ public function removeBeVariants(array $beVariantsArray)
                     if (!$beVariant->getBeVariants()) {
                         unset($this->beVariants[$beVariantId]);
                     }
-
                 } else {
                     unset($this->beVariants[$beVariantId]);
                 }
@@ -446,6 +439,44 @@ public function removeBeVariants(array $beVariantsArray)
         return true;
     }
 
+    public function getMin(): int
+    {
+        return $this->min;
+    }
+
+    public function setMin(int $min): void
+    {
+        if ($min < 0 || $min > $this->max) {
+            throw new InvalidArgumentException();
+        }
+
+        $this->min = $min;
+    }
+
+    public function getMax(): int
+    {
+        return $this->max;
+    }
+
+    public function setMax(int $max): void
+    {
+        if ($max < 0 || $max < $this->min) {
+            throw new InvalidArgumentException();
+        }
+
+        $this->max = $max;
+    }
+
+    public function getStock(): int
+    {
+        return $this->stock;
+    }
+
+    public function setStock(int $stock): void
+    {
+        $this->stock = $stock;
+    }
+
     protected function calcGross(): void
     {
         if ($this->isNetPrice() === false) {
@@ -472,7 +503,7 @@ protected function calcTax(): void
             $this->tax = ($this->gross / (1 + $this->getTaxClass()->getCalc())) * ($this->getTaxClass()->getCalc());
         } else {
             $this->calcNet();
-            $this->tax = ($this->net * $this->getTaxClass()->getCalc());
+            $this->tax = $this->net * $this->getTaxClass()->getCalc();
         }
     }
 
@@ -518,42 +549,4 @@ protected function reCalc(): void
             $this->calcGross();
         }
     }
-
-    public function getMin(): int
-    {
-        return $this->min;
-    }
-
-    public function setMin(int $min): void
-    {
-        if ($min < 0 || $min > $this->max) {
-            throw new \InvalidArgumentException();
-        }
-
-        $this->min = $min;
-    }
-
-    public function getMax(): int
-    {
-        return $this->max;
-    }
-
-    public function setMax(int $max): void
-    {
-        if ($max < 0 || $max < $this->min) {
-            throw new \InvalidArgumentException();
-        }
-
-        $this->max = $max;
-    }
-
-    public function getStock(): int
-    {
-        return $this->stock;
-    }
-
-    public function setStock(int $stock): void
-    {
-        $this->stock = $stock;
-    }
 }
diff --git a/Classes/Domain/Model/Cart/BeVariantInterface.php b/Classes/Domain/Model/Cart/BeVariantInterface.php
index ff295f69..b3ae9abb 100644
--- a/Classes/Domain/Model/Cart/BeVariantInterface.php
+++ b/Classes/Domain/Model/Cart/BeVariantInterface.php
@@ -15,9 +15,9 @@ interface BeVariantInterface extends MinimalInterface
 {
     public function toArray(): array;
 
-    public function getParent(): BeVariantInterface|ProductInterface;
+    public function getParent(): ProductInterface|self;
 
-    public function setParent(BeVariantInterface|ProductInterface $parent): void;
+    public function setParent(ProductInterface|self $parent): void;
 
     public function getProduct(): ProductInterface;
 
@@ -77,10 +77,7 @@ public function getBeVariants(): array;
 
     public function getBeVariantById(int $beVariantId): ?self;
 
-    /**
-     * @return bool|int
-     */
-    public function removeBeVariants(array $beVariantsArray);
+    public function removeBeVariants(array $beVariantsArray): bool|int;
 
     public function getMin(): int;
 
diff --git a/Classes/Domain/Model/Cart/Cart.php b/Classes/Domain/Model/Cart/Cart.php
index e635b3aa..b7300715 100644
--- a/Classes/Domain/Model/Cart/Cart.php
+++ b/Classes/Domain/Model/Cart/Cart.php
@@ -11,15 +11,15 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use Extcode\Cart\Service\CurrencyTranslationServiceInterface;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
+use InvalidArgumentException;
+use LogicException;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 class Cart implements AdditionalDataInterface
 {
     use AdditionalDataTrait;
 
-    private ?CurrencyTranslationServiceInterface $currencyTranslationService = null;
-
     protected float $net;
 
     protected float $gross;
@@ -29,7 +29,7 @@ class Cart implements AdditionalDataInterface
     protected int $count;
 
     /**
-     * @var Product[]
+     * @var ProductInterface[]
      */
     protected array $products = [];
 
@@ -71,6 +71,8 @@ class Cart implements AdditionalDataInterface
 
     protected string $shippingCountry = '';
 
+    private ?CurrencyTranslationLoaderInterface $currencyTranslationLoader = null;
+
     public function __construct(
         protected array $taxClasses,
         protected bool $isNetCart = false,
@@ -78,7 +80,7 @@ public function __construct(
         protected string $currencySign = '€',
         protected float $currencyTranslation = 1.00
     ) {
-        $this->currencyTranslationService = GeneralUtility::makeInstance(CurrencyTranslationServiceInterface::class);
+        $this->currencyTranslationLoader = GeneralUtility::makeInstance(CurrencyTranslationLoaderInterface::class);
 
         $this->net = 0.0;
         $this->gross = 0.0;
@@ -126,7 +128,9 @@ public function __sleep(): array
         ];
     }
 
-    public function __wakeup() {}
+    public function __wakeup(): void
+    {
+    }
 
     /**
      * @return TaxClass[]
@@ -168,12 +172,13 @@ public function isNetCart(): bool
 
     /**
      * Sets Order Number if no Order Number is given else throws an exception
-     * @throws \LogicException
+     *
+     * @throws LogicException
      */
     public function setOrderNumber(string $orderNumber): void
     {
-        if (($this->orderNumber) && ($this->orderNumber !== $orderNumber)) {
-            throw new \LogicException(
+        if ($this->orderNumber && ($this->orderNumber !== $orderNumber)) {
+            throw new LogicException(
                 'You can not redeclare the order number of your cart.',
                 1413969668
             );
@@ -201,12 +206,12 @@ public function getOrderNumber(): string
     /**
      * Sets Invoice Number if no Invoice Number is given else throws an exception
      *
-     * @throws \LogicException
+     * @throws LogicException
      */
     public function setInvoiceNumber(string $invoiceNumber): void
     {
-        if (($this->invoiceNumber) && ($this->invoiceNumber !== $invoiceNumber)) {
-            throw new \LogicException(
+        if ($this->invoiceNumber && ($this->invoiceNumber !== $invoiceNumber)) {
+            throw new LogicException(
                 'You can not redeclare the invoice number of your cart.',
                 1413969712
             );
@@ -484,21 +489,18 @@ public function getServiceGross(): float
     }
 
     /**
-     * @return Product[]
+     * @return ProductInterface[]
      */
     public function getProducts(): array
     {
         return $this->products;
     }
 
-    public function getProductById(string $productId): ?Product
+    public function getProductById(string $productId): ?ProductInterface
     {
         return $this->products[$productId] ?? null;
     }
 
-    /**
-     * @return array
-     */
     public function toArray(): array
     {
         $cartArray = [
@@ -541,27 +543,12 @@ public function toJson(): string
 
     /**
      * Return Coupons
-     *
-     * @return array
      */
     public function getCoupons(): array
     {
         return $this->coupons;
     }
 
-    protected function areCouponsCombinable(): bool
-    {
-        if ($this->coupons) {
-            foreach ($this->coupons as $coupon) {
-                if (!$coupon->isCombinable()) {
-                    return false;
-                }
-            }
-        }
-
-        return true;
-    }
-
     /**
      * @todo replace return type with enum
      */
@@ -656,16 +643,12 @@ public function getCouponTaxes(): array
 
     public function getDiscountGross(): float
     {
-        $gross = -1 * $this->getCouponGross();
-
-        return $gross;
+        return -1 * $this->getCouponGross();
     }
 
     public function getDiscountNet(): float
     {
-        $net = -1 * $this->getCouponNet();
-
-        return $net;
+        return -1 * $this->getCouponNet();
     }
 
     /**
@@ -673,12 +656,12 @@ public function getDiscountNet(): float
      */
     public function getDiscountTaxes(): array
     {
-        $taxes = array_map(fn($value) => -1 * $value, $this->getCouponTaxes());
+        $taxes = array_map(static fn ($value) => -1 * $value, $this->getCouponTaxes());
 
         return $taxes;
     }
 
-    public function addProduct(Product $newProduct): void
+    public function addProduct(ProductInterface $newProduct): void
     {
         $id = $newProduct->getId();
 
@@ -695,7 +678,7 @@ public function addProduct(Product $newProduct): void
         }
     }
 
-    public function changeProduct(Product $product, Product $newProduct): void
+    public function changeProduct(ProductInterface $product, ProductInterface $newProduct): void
     {
         $newQuantity = $product->getQuantity() + $newProduct->getQuantity();
 
@@ -716,7 +699,7 @@ public function changeProduct(Product $product, Product $newProduct): void
         $this->addNet($product->getNet());
         $this->addTax($product->getTax(), $product->getTaxClass());
 
-        //update all service attributes
+        // update all service attributes
         $this->updateServiceAttributes();
     }
 
@@ -725,38 +708,36 @@ public function changeProductsQuantity(array $productQuantityArray): void
         foreach ($productQuantityArray as $productPuid => $quantity) {
             $product = $this->products[$productPuid];
 
-            if ($product instanceof Product) {
-                if (is_array($quantity)) {
+            if (is_array($quantity)) {
+                $this->subCount($product->getQuantity());
+                $this->subGross($product->getGross());
+                $this->subNet($product->getNet());
+                $this->subTax($product->getTax(), $product->getTaxClass());
+
+                $product->changeVariantsQuantity($quantity);
+
+                $this->addCount($product->getQuantity());
+                $this->addGross($product->getGross());
+                $this->addNet($product->getNet());
+                $this->addTax($product->getTax(), $product->getTaxClass());
+            } else {
+                // only run, if quantity was realy changed
+                if ($product->getQuantity() != $quantity) {
                     $this->subCount($product->getQuantity());
                     $this->subGross($product->getGross());
                     $this->subNet($product->getNet());
                     $this->subTax($product->getTax(), $product->getTaxClass());
 
-                    $product->changeVariantsQuantity($quantity);
+                    $product->changeQuantity($quantity);
 
                     $this->addCount($product->getQuantity());
                     $this->addGross($product->getGross());
                     $this->addNet($product->getNet());
                     $this->addTax($product->getTax(), $product->getTaxClass());
-                } else {
-                    // only run, if quantity was realy changed
-                    if ($product->getQuantity() != $quantity) {
-                        $this->subCount($product->getQuantity());
-                        $this->subGross($product->getGross());
-                        $this->subNet($product->getNet());
-                        $this->subTax($product->getTax(), $product->getTaxClass());
-
-                        $product->changeQuantity($quantity);
-
-                        $this->addCount($product->getQuantity());
-                        $this->addGross($product->getGross());
-                        $this->addNet($product->getNet());
-                        $this->addTax($product->getTax(), $product->getTaxClass());
-                    }
                 }
             }
 
-            //update all service attributes
+            // update all service attributes
             $this->updateServiceAttributes();
         }
     }
@@ -765,6 +746,10 @@ public function removeProductByIds(array $products): bool
     {
         $productId = key($products);
 
+        if (is_string($productId) === false) {
+            throw new InvalidArgumentException('Key has to be a string.', 1774447534);
+        }
+
         if (!isset($this->products[$productId])) {
             return false;
         }
@@ -789,9 +774,9 @@ public function removeProductById(string $productId): bool
         return true;
     }
 
-    public function removeProduct(Product $product, array $productVariantIds = []): bool
+    public function removeProduct(ProductInterface $product, array $productVariantIds = []): bool
     {
-        if (is_array($productVariantIds) && !empty($productVariantIds)) {
+        if (!empty($productVariantIds)) {
             $product->removeBeVariants($productVariantIds);
 
             if (!$product->getBeVariants()) {
@@ -811,49 +796,6 @@ public function removeProduct(Product $product, array $productVariantIds = []):
         return true;
     }
 
-    protected function addServiceAttributes(Product $newProduct): void
-    {
-        if ($this->maxServiceAttr1 < $newProduct->getServiceAttribute1()) {
-            $this->maxServiceAttr1 = $newProduct->getServiceAttribute1();
-        }
-        if ($this->maxServiceAttr2 < $newProduct->getServiceAttribute2()) {
-            $this->maxServiceAttr2 = $newProduct->getServiceAttribute2();
-        }
-        if ($this->maxServiceAttr3 < $newProduct->getServiceAttribute3()) {
-            $this->maxServiceAttr3 = $newProduct->getServiceAttribute3();
-        }
-
-        $this->sumServiceAttr1 += $newProduct->getServiceAttribute1() * $newProduct->getQuantity();
-        $this->sumServiceAttr2 += $newProduct->getServiceAttribute2() * $newProduct->getQuantity();
-        $this->sumServiceAttr3 += $newProduct->getServiceAttribute3() * $newProduct->getQuantity();
-    }
-
-    protected function updateServiceAttributes(): void
-    {
-        $this->maxServiceAttr1 = 0.0;
-        $this->maxServiceAttr2 = 0.0;
-        $this->maxServiceAttr3 = 0.0;
-        $this->sumServiceAttr1 = 0.0;
-        $this->sumServiceAttr2 = 0.0;
-        $this->sumServiceAttr3 = 0.0;
-
-        foreach ($this->products as $key => $product) {
-            if ($this->maxServiceAttr1 < $product->getServiceAttribute1()) {
-                $this->maxServiceAttr1 = $product->getServiceAttribute1();
-            }
-            if ($this->maxServiceAttr2 < $product->getServiceAttribute2()) {
-                $this->maxServiceAttr2 = $product->getServiceAttribute2();
-            }
-            if ($this->maxServiceAttr3 < $product->getServiceAttribute3()) {
-                $this->maxServiceAttr3 = $product->getServiceAttribute3();
-            }
-
-            $this->sumServiceAttr1 += $product->getServiceAttribute1() * $product->getQuantity();
-            $this->sumServiceAttr2 += $product->getServiceAttribute2() * $product->getQuantity();
-            $this->sumServiceAttr3 += $product->getServiceAttribute3() * $product->getQuantity();
-        }
-    }
-
     public function getMaxServiceAttribute1(): float
     {
         return $this->maxServiceAttr1;
@@ -902,54 +844,6 @@ public function changeSpecials(array $specials): void
         $this->specials = $specials;
     }
 
-    protected function calcAll(): void
-    {
-        $this->calcCount();
-        $this->calcGross();
-        $this->calcTax();
-        $this->calcNet();
-    }
-
-    protected function calcCount(): void
-    {
-        $this->count = 0;
-        if ($this->products) {
-            foreach ($this->products as $product) {
-                $this->addCount($product->getQuantity());
-            }
-        }
-    }
-
-    protected function calcGross(): void
-    {
-        $this->gross = 0.0;
-        if ($this->products) {
-            foreach ($this->products as $product) {
-                $this->addGross($product->getGross());
-            }
-        }
-    }
-
-    protected function calcNet(): void
-    {
-        $this->net = 0.0;
-        if ($this->products) {
-            foreach ($this->products as $product) {
-                $this->addNet($product->getNet());
-            }
-        }
-    }
-
-    protected function calcTax(): void
-    {
-        $this->taxes = [];
-        if ($this->products) {
-            foreach ($this->products as $product) {
-                $this->addTax($product->getTax(), $product->getTaxClass());
-            }
-        }
-    }
-
     public function reCalc(): void
     {
         $this->calcCount();
@@ -1088,10 +982,114 @@ public function setCurrencySign(string $currencySign): void
 
     public function translatePrice(?float $price = null): ?float
     {
-        if (is_null($this->currencyTranslationService)) {
-            $this->currencyTranslationService = GeneralUtility::makeInstance(CurrencyTranslationServiceInterface::class);
+        if (is_null($this->currencyTranslationLoader)) {
+            $this->currencyTranslationLoader = GeneralUtility::makeInstance(CurrencyTranslationLoaderInterface::class);
         }
 
-        return $this->currencyTranslationService->translatePrice($this->getCurrencyTranslation(), $price);
+        return $this->currencyTranslationLoader->translatePrice($this->getCurrencyTranslation(), $price);
+    }
+
+    protected function areCouponsCombinable(): bool
+    {
+        if ($this->coupons) {
+            foreach ($this->coupons as $coupon) {
+                if (!$coupon->isCombinable()) {
+                    return false;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    protected function addServiceAttributes(ProductInterface $newProduct): void
+    {
+        if ($this->maxServiceAttr1 < $newProduct->getServiceAttribute1()) {
+            $this->maxServiceAttr1 = $newProduct->getServiceAttribute1();
+        }
+        if ($this->maxServiceAttr2 < $newProduct->getServiceAttribute2()) {
+            $this->maxServiceAttr2 = $newProduct->getServiceAttribute2();
+        }
+        if ($this->maxServiceAttr3 < $newProduct->getServiceAttribute3()) {
+            $this->maxServiceAttr3 = $newProduct->getServiceAttribute3();
+        }
+
+        $this->sumServiceAttr1 += $newProduct->getServiceAttribute1() * $newProduct->getQuantity();
+        $this->sumServiceAttr2 += $newProduct->getServiceAttribute2() * $newProduct->getQuantity();
+        $this->sumServiceAttr3 += $newProduct->getServiceAttribute3() * $newProduct->getQuantity();
+    }
+
+    protected function updateServiceAttributes(): void
+    {
+        $this->maxServiceAttr1 = 0.0;
+        $this->maxServiceAttr2 = 0.0;
+        $this->maxServiceAttr3 = 0.0;
+        $this->sumServiceAttr1 = 0.0;
+        $this->sumServiceAttr2 = 0.0;
+        $this->sumServiceAttr3 = 0.0;
+
+        foreach ($this->products as $key => $product) {
+            if ($this->maxServiceAttr1 < $product->getServiceAttribute1()) {
+                $this->maxServiceAttr1 = $product->getServiceAttribute1();
+            }
+            if ($this->maxServiceAttr2 < $product->getServiceAttribute2()) {
+                $this->maxServiceAttr2 = $product->getServiceAttribute2();
+            }
+            if ($this->maxServiceAttr3 < $product->getServiceAttribute3()) {
+                $this->maxServiceAttr3 = $product->getServiceAttribute3();
+            }
+
+            $this->sumServiceAttr1 += $product->getServiceAttribute1() * $product->getQuantity();
+            $this->sumServiceAttr2 += $product->getServiceAttribute2() * $product->getQuantity();
+            $this->sumServiceAttr3 += $product->getServiceAttribute3() * $product->getQuantity();
+        }
+    }
+
+    protected function calcAll(): void
+    {
+        $this->calcCount();
+        $this->calcGross();
+        $this->calcTax();
+        $this->calcNet();
+    }
+
+    protected function calcCount(): void
+    {
+        $this->count = 0;
+        if ($this->products) {
+            foreach ($this->products as $product) {
+                $this->addCount($product->getQuantity());
+            }
+        }
+    }
+
+    protected function calcGross(): void
+    {
+        $this->gross = 0.0;
+        if ($this->products) {
+            foreach ($this->products as $product) {
+                $this->addGross($product->getGross());
+            }
+        }
+    }
+
+    protected function calcNet(): void
+    {
+        $this->net = 0.0;
+        if ($this->products) {
+            foreach ($this->products as $product) {
+                $this->addNet($product->getNet());
+            }
+        }
+    }
+
+    protected function calcTax(): void
+    {
+        $this->taxes = [];
+        if ($this->products) {
+            foreach ($this->products as $product) {
+                $this->addTax($product->getTax(), $product->getTaxClass());
+            }
+        }
     }
 }
diff --git a/Classes/Domain/Model/Cart/CartCouponInterface.php b/Classes/Domain/Model/Cart/CartCouponInterface.php
index f1d0681a..3e9c3c7d 100644
--- a/Classes/Domain/Model/Cart/CartCouponInterface.php
+++ b/Classes/Domain/Model/Cart/CartCouponInterface.php
@@ -13,16 +13,14 @@
 
 interface CartCouponInterface
 {
-    /**
-     * Returns the coupon title.
-     */
     public function getTitle(): string;
 
-    /**
-     * Returns the coupon code.
-     */
     public function getCode(): string;
 
+    public function getTaxClass(): TaxClass;
+
+    public function setCart(Cart $cart): void;
+
     /**
      * Returns true if a coupon can be combined with other coupons.
      */
diff --git a/Classes/Domain/Model/Cart/Extra.php b/Classes/Domain/Model/Cart/Extra.php
index a77d604d..523cd456 100644
--- a/Classes/Domain/Model/Cart/Extra.php
+++ b/Classes/Domain/Model/Cart/Extra.php
@@ -63,11 +63,7 @@ public function getCondition(): float
 
     public function leq(float $condition): bool
     {
-        if ($condition < $this->condition) {
-            return false;
-        }
-
-        return true;
+        return ! ($condition < $this->condition);
     }
 
     public function getPrice(): float
@@ -114,6 +110,7 @@ public function getTaxForTaxClass(TaxClass $taxClass): float
             if ($this->service->getTaxClass()->getId() === -2) {
                 $taxClassDistribution = $this->getTaxClassDistributionOverCart();
                 $factor = $taxClass->getCalc();
+
                 return ($this->net * $taxClassDistribution[$taxClass->getId()]) * $factor;
             }
         } else {
@@ -124,6 +121,7 @@ public function getTaxForTaxClass(TaxClass $taxClass): float
             if ($this->service->getTaxClass()->getId() === -2) {
                 $taxClassDistribution = $this->getTaxClassDistributionOverCart();
                 $factor = $taxClass->getCalc();
+
                 return ($this->gross * $taxClassDistribution[$taxClass->getId()]) / (1 + $factor) * $factor;
             }
         }
@@ -150,7 +148,7 @@ protected function calcTax(): void
     {
         if ($this->isNetPrice) {
             if ($this->service->getTaxClass()->getId() > 0) {
-                $this->tax = ($this->net * $this->taxClass->getCalc());
+                $this->tax = $this->net * $this->taxClass->getCalc();
             } elseif ($this->service->getTaxClass()->getId() === -2) {
                 $tax = 0.0;
                 foreach ($this->getTaxClassDistributionOverCart() as $taxClassId => $taxClassDistribution) {
@@ -187,7 +185,7 @@ protected function getTaxClassDistributionOverCart(): array
 
         $total = array_sum($taxClassDistribution);
 
-        return array_map(fn($gross) => $gross / $total, $taxClassDistribution);
+        return array_map(static fn ($gross) => $gross / $total, $taxClassDistribution);
     }
 
     protected function calcNet(): void
diff --git a/Classes/Domain/Model/Cart/FeVariant.php b/Classes/Domain/Model/Cart/FeVariant.php
index bc202f2d..e8a8045c 100644
--- a/Classes/Domain/Model/Cart/FeVariant.php
+++ b/Classes/Domain/Model/Cart/FeVariant.php
@@ -25,7 +25,8 @@ final class FeVariant implements FeVariantInterface
 
     public function __construct(
         protected array $variantData = []
-    ) {}
+    ) {
+    }
 
     public function getId(): string
     {
@@ -51,8 +52,11 @@ public function getTitle(): string
     {
         $titleArr = [];
         foreach ($this->variantData as $variant) {
-            $titleArr[] = $variant['title'];
+            if (is_string($variant['title'])) {
+                $titleArr[] = $variant['title'];
+            }
         }
+
         return implode($this->titleGlue, $titleArr);
     }
 
@@ -60,8 +64,11 @@ public function getSku(): string
     {
         $skuArr = [];
         foreach ($this->variantData as $variant) {
-            $skuArr[] = $variant['sku'];
+            if (is_string($variant['sku'])) {
+                $skuArr[] = $variant['sku'];
+            }
         }
+
         return implode($this->skuGlue, $skuArr);
     }
 
@@ -69,8 +76,11 @@ public function getValue(): string
     {
         $valueArr = [];
         foreach ($this->variantData as $variant) {
-            $valueArr[] = $variant['value'];
+            if (is_string($variant['value'])) {
+                $valueArr[] = $variant['value'];
+            }
         }
+
         return implode($this->valueGlue, $valueArr);
     }
 }
diff --git a/Classes/Domain/Model/Cart/Product.php b/Classes/Domain/Model/Cart/Product.php
index 58d9a08b..31b2833c 100644
--- a/Classes/Domain/Model/Cart/Product.php
+++ b/Classes/Domain/Model/Cart/Product.php
@@ -4,6 +4,8 @@
 
 namespace Extcode\Cart\Domain\Model\Cart;
 
+use InvalidArgumentException;
+
 /*
  * This file is part of the package extcode/cart.
  *
@@ -148,8 +150,8 @@ public function changeVariantsQuantity(array $variantQuantity): void
         foreach ($variantQuantity as $variantId => $quantity) {
             $variant = $this->beVariants[$variantId];
 
-            if (ctype_digit((string)$quantity)) {
-                $quantity = (int)$quantity;
+            if (ctype_digit((string) $quantity)) {
+                $quantity = (int) $quantity;
                 $variant->changeQuantity($quantity);
             } elseif (is_array($quantity)) {
                 $variant->changeVariantsQuantity($quantity);
@@ -240,15 +242,6 @@ public function getId(): string
         return $this->getTableProductId();
     }
 
-    protected function getTableProductId(): string
-    {
-        $tableProductId = $this->getProductType() . '_' . $this->getProductId();
-        if ($this->getFeVariant()) {
-            $tableProductId .= '_' . $this->getFeVariant()->getId();
-        }
-        return $tableProductId;
-    }
-
     public function getPrice(): float
     {
         return $this->price;
@@ -312,7 +305,7 @@ public function setQuantityDiscounts(array $quantityDiscounts): void
     /**
      * Returns Best Price (min of Price and Special Price)
      */
-    public function getBestPrice(?int $quantity = null): ?float
+    public function getBestPrice(?int $quantity = null): float
     {
         $bestPrice = $this->getQuantityDiscountPrice($quantity);
 
@@ -329,9 +322,7 @@ public function getBestPrice(?int $quantity = null): ?float
      */
     public function getDiscount(): float
     {
-        $discount = $this->getTranslatedPrice() - $this->getBestPrice();
-
-        return $discount;
+        return $this->getTranslatedPrice() - $this->getBestPrice();
     }
 
     /**
@@ -343,6 +334,7 @@ public function getSpecialPriceDiscount(): float
         if (($this->getTranslatedPrice() != 0.0) && ($this->getTranslatedSpecialPrice())) {
             $discount = (($this->getTranslatedPrice() - $this->getTranslatedSpecialPrice()) / $this->getTranslatedPrice()) * 100;
         }
+
         return $discount;
     }
 
@@ -376,12 +368,12 @@ public function changeQuantity(int $newQuantity): void
     public function changeQuantities(array $newQuantities): void
     {
         foreach ($newQuantities as $newQuantityKey => $newQuantityValue) {
-            $newQuantityKey = (string)$newQuantityKey;
-            $newQuantityValue = (int)$newQuantityValue;
+            $newQuantityKey = (string) $newQuantityKey;
+            $newQuantityValue = (int) $newQuantityValue;
             if ($newQuantityValue === 0) {
-                $this->removeVariantById((string)$newQuantityKey);
+                $this->removeVariantById((string) $newQuantityKey);
             } else {
-                $this->getBeVariantById((string)$newQuantityKey)->setQuantity($newQuantityValue);
+                $this->getBeVariantById((string) $newQuantityKey)->setQuantity($newQuantityValue);
                 $this->reCalc();
             }
         }
@@ -414,6 +406,7 @@ public function getGross(): float
             $this->calcGross();
             $gross = $this->gross;
         }
+
         return $gross;
     }
 
@@ -424,6 +417,7 @@ public function getNet(): float
             $this->calcNet();
             $net = $this->net;
         }
+
         return $net;
     }
 
@@ -434,13 +428,11 @@ public function getTax(): float
             $this->calcTax();
             $tax = $this->tax;
         }
+
         return $tax;
     }
 
-    /**
-     * @return mixed
-     */
-    public function getError()
+    public function getError(): mixed
     {
         return $this->error;
     }
@@ -523,6 +515,76 @@ public function toJson(): string
         return json_encode($this->toArray());
     }
 
+    public function getMinNumberInCart(): int
+    {
+        return $this->minNumberInCart;
+    }
+
+    public function setMinNumberInCart(int $minNumberInCart): void
+    {
+        if ($minNumberInCart < 0
+            || ($this->maxNumberInCart > 0 && $minNumberInCart > $this->maxNumberInCart)
+        ) {
+            throw new InvalidArgumentException();
+        }
+
+        $this->minNumberInCart = $minNumberInCart;
+    }
+
+    public function getMaxNumberInCart(): int
+    {
+        return $this->maxNumberInCart;
+    }
+
+    public function setMaxNumberInCart(int $maxNumberInCart): void
+    {
+        if ($maxNumberInCart < 0 || $maxNumberInCart < $this->minNumberInCart) {
+            throw new InvalidArgumentException();
+        }
+
+        $this->maxNumberInCart = $maxNumberInCart;
+    }
+
+    public function getStock(): int
+    {
+        return $this->stock;
+    }
+
+    public function setStock(int $stock): void
+    {
+        $this->stock = $stock;
+    }
+
+    public function isHandleStock(): bool
+    {
+        return $this->handleStock;
+    }
+
+    public function setHandleStock(bool $handleStock): void
+    {
+        $this->handleStock = $handleStock;
+    }
+
+    public function isHandleStockInVariants(): bool
+    {
+        return $this->handleStockInVariants;
+    }
+
+    public function setHandleStockInVariants(bool $handleStockInVariants): void
+    {
+        $this->handleStockInVariants = $handleStockInVariants;
+    }
+
+    protected function getTableProductId(): string
+    {
+        $tableProductId = $this->getProductType() . '_' . $this->getProductId();
+        if ($this->getFeVariant()) {
+            $tableProductId .= '_' . $this->getFeVariant()->getId();
+        }
+
+        return $tableProductId;
+    }
+
     protected function calcGross(): void
     {
         if ($this->isNetPrice == false) {
@@ -554,7 +616,7 @@ protected function calcTax(): void
         if ($this->isNetPrice == false) {
             $this->tax = ($this->gross / (1 + $this->getTaxClass()->getCalc())) * ($this->getTaxClass()->getCalc());
         } else {
-            $this->tax = ($this->net * $this->getTaxClass()->getCalc());
+            $this->tax = $this->net * $this->getTaxClass()->getCalc();
         }
     }
 
@@ -601,64 +663,4 @@ protected function reCalc(): void
         $this->calcTax();
         $this->calcNet();
     }
-
-    public function getMinNumberInCart(): int
-    {
-        return $this->minNumberInCart;
-    }
-
-    public function setMinNumberInCart(int $minNumberInCart): void
-    {
-        if ($minNumberInCart < 0
-            || ($this->maxNumberInCart > 0 && $minNumberInCart > $this->maxNumberInCart)
-        ) {
-            throw new \InvalidArgumentException();
-        }
-
-        $this->minNumberInCart = $minNumberInCart;
-    }
-
-    public function getMaxNumberInCart(): int
-    {
-        return $this->maxNumberInCart;
-    }
-
-    public function setMaxNumberInCart(int $maxNumberInCart): void
-    {
-        if ($maxNumberInCart < 0 || $maxNumberInCart < $this->minNumberInCart) {
-            throw new \InvalidArgumentException();
-        }
-
-        $this->maxNumberInCart = $maxNumberInCart;
-    }
-
-    public function getStock(): int
-    {
-        return $this->stock;
-    }
-
-    public function setStock(int $stock): void
-    {
-        $this->stock = $stock;
-    }
-
-    public function isHandleStock(): bool
-    {
-        return $this->handleStock;
-    }
-
-    public function setHandleStock(bool $handleStock): void
-    {
-        $this->handleStock = $handleStock;
-    }
-
-    public function isHandleStockInVariants(): bool
-    {
-        return $this->handleStockInVariants;
-    }
-
-    public function setHandleStockInVariants(bool $handleStockInVariants): void
-    {
-        $this->handleStockInVariants = $handleStockInVariants;
-    }
 }
diff --git a/Classes/Domain/Model/Cart/ProductInterface.php b/Classes/Domain/Model/Cart/ProductInterface.php
index 0c636308..65c212de 100644
--- a/Classes/Domain/Model/Cart/ProductInterface.php
+++ b/Classes/Domain/Model/Cart/ProductInterface.php
@@ -105,10 +105,7 @@ public function getNet(): float;
 
     public function getTax(): float;
 
-    /**
-     * @return mixed
-     */
-    public function getError();
+    public function getError(): mixed;
 
     public function isVirtualProduct(): bool;
 
diff --git a/Classes/Domain/Model/Cart/Service.php b/Classes/Domain/Model/Cart/Service.php
index ab39b10c..dda84b5e 100644
--- a/Classes/Domain/Model/Cart/Service.php
+++ b/Classes/Domain/Model/Cart/Service.php
@@ -20,7 +20,8 @@ class Service implements ServiceInterface
     public function __construct(
         protected int $id,
         protected array $config = []
-    ) {}
+    ) {
+    }
 
     public function getId(): int
     {
@@ -133,7 +134,7 @@ public function getTaxes(): array
                 $taxValue = $this->cart->translatePrice($extraTax);
 
                 if ($extra->getExtraType() === 'each') {
-                    $taxValue = $this->cart->getCount() * $taxValue;
+                    $taxValue *= $this->cart->getCount();
                 }
 
                 $taxes[] = [
@@ -150,11 +151,11 @@ public function getTaxClass(): TaxClass
     {
         $taxClass = null;
 
-        if ((int)$this->config['taxClassId'] > 0) {
-            return $this->cart->getTaxClass((int)$this->config['taxClassId']);
+        if ((int) $this->config['taxClassId'] > 0) {
+            return $this->cart->getTaxClass((int) $this->config['taxClassId']);
         }
 
-        if ((int)$this->config['taxClassId'] === -1) {
+        if ((int) $this->config['taxClassId'] === -1) {
             // assign lowest TaxClass
             foreach ($this->cart->getTaxClasses() as $cartTaxClass) {
                 if ($taxClass === null || $taxClass->getCalc() > $cartTaxClass->getCalc()) {
@@ -169,7 +170,7 @@ public function getTaxClass(): TaxClass
             }
         }
 
-        if ((int)$this->config['taxClassId'] === -2) {
+        if ((int) $this->config['taxClassId'] === -2) {
             $taxClass = new TaxClass(
                 $this->id = -2,
                 '0',
@@ -196,18 +197,23 @@ public function getFallBackId(): ?int
         if (!isset($this->config['fallBackId'])) {
             return null;
         }
-        return (int)$this->config['fallBackId'];
+
+        return (int) $this->config['fallBackId'];
     }
 
     public function isAvailable(): bool
     {
         if (isset($this->config['available'])) {
-            $availableFrom = $this->config['available']['from'];
-            if (isset($availableFrom) && $this->cart->getGross() < (float)$availableFrom) {
+            if (isset($this->config['available']['from'])
+                && is_numeric($this->config['available']['from'])
+                && $this->cart->getGross() < (float) $this->config['available']['from']
+            ) {
                 return false;
             }
-            $availableUntil = $this->config['available']['until'];
-            if (isset($availableUntil) && $this->cart->getGross() > (float)$availableUntil) {
+            if (isset($this->config['available']['until'])
+                && is_numeric($this->config['available']['until'])
+                && $this->cart->getGross() > (float) $this->config['available']['until']
+            ) {
                 return false;
             }
         }
@@ -217,20 +223,15 @@ public function isAvailable(): bool
 
     public function isFree(): bool
     {
-
         $freeFrom = $this->config['free']['from'] ?? null;
         $freeUntil = $this->config['free']['until'] ?? null;
 
         if ($freeFrom || $freeUntil) {
-            if ($freeFrom && $this->cart->getGross() < (float)$freeFrom) {
-                return false;
-            }
-
-            if ($freeUntil && $this->cart->getGross() > (float)$freeUntil) {
+            if ($freeFrom && $this->cart->getGross() < (float) $freeFrom) {
                 return false;
             }
 
-            return true;
+            return ! ($freeUntil && $this->cart->getGross() > (float) $freeUntil);
         }
 
         return false;
@@ -238,12 +239,12 @@ public function isFree(): bool
 
     public function isBuyerEmailDisabled(): bool
     {
-        return (int)($this->config['preventBuyerEmail'] ?? 0) === 1;
+        return (int) ($this->config['preventBuyerEmail'] ?? 0) === 1;
     }
 
     public function isSellerEmailDisabled(): bool
     {
-        return (int)($this->config['preventSellerEmail'] ?? 0) === 1;
+        return (int) ($this->config['preventSellerEmail'] ?? 0) === 1;
     }
 
     protected function getExtra(): Extra
@@ -267,7 +268,7 @@ protected function getExtra(): Extra
                 return new Extra(
                     0,
                     0,
-                    (float)$this->config['extra']['extra'],
+                    (float) $this->config['extra']['extra'],
                     $this->getTaxClass(),
                     $this->cart->isNetCart(),
                     $extraType,
@@ -280,11 +281,11 @@ protected function getExtra(): Extra
             $extra = null;
 
             foreach ($this->config['extra'] as $extraKey => $extraValue) {
-                if (is_array($extraValue) && ((float)$extraValue['value'] <= (float)$conditionValue)) {
+                if (is_array($extraValue) && ((float) $extraValue['value'] <= (float) $conditionValue)) {
                     $extra = new Extra(
                         $extraKey,
-                        (float)$extraValue['value'],
-                        (float)$extraValue['extra'],
+                        (float) $extraValue['value'],
+                        (float) $extraValue['extra'],
                         $this->getTaxClass(),
                         $this->cart->isNetCart(),
                         $extraType,
@@ -299,7 +300,7 @@ protected function getExtra(): Extra
         return new Extra(
             0,
             0,
-            (float)$this->config['extra'],
+            (float) $this->config['extra'],
             $this->getTaxClass(),
             $this->cart->isNetCart(),
             '',
@@ -307,10 +308,7 @@ protected function getExtra(): Extra
         );
     }
 
-    /**
-     * @return float|int|null
-     */
-    protected function getConditionValueFromCart(string $extraType)
+    protected function getConditionValueFromCart(string $extraType): null|float|int
     {
         return match ($extraType) {
             'by_price' => $this->cart->getGross(),
diff --git a/Classes/Domain/Model/Cart/TaxClass.php b/Classes/Domain/Model/Cart/TaxClass.php
index 0cc0d897..38bf0b60 100644
--- a/Classes/Domain/Model/Cart/TaxClass.php
+++ b/Classes/Domain/Model/Cart/TaxClass.php
@@ -18,7 +18,8 @@ public function __construct(
         private string $value,
         private float $calc,
         private string $title
-    ) {}
+    ) {
+    }
 
     public function getId(): int
     {
diff --git a/Classes/Domain/Model/Cart/TaxClassFactory.php b/Classes/Domain/Model/Cart/TaxClassFactory.php
index e9f8573c..caae78cb 100644
--- a/Classes/Domain/Model/Cart/TaxClassFactory.php
+++ b/Classes/Domain/Model/Cart/TaxClassFactory.php
@@ -17,7 +17,8 @@
 {
     public function __construct(
         private LoggerInterface $logger
-    ) {}
+    ) {
+    }
 
     public function getTaxClass(int $taxClassKey, array $taxClassValue): ?TaxClass
     {
@@ -25,7 +26,7 @@ public function getTaxClass(int $taxClassKey, array $taxClassValue): ?TaxClass
             return new TaxClass(
                 $taxClassKey,
                 $taxClassValue['value'],
-                (float)$taxClassValue['calc'],
+                (float) $taxClassValue['calc'],
                 $taxClassValue['name']
             );
         }
diff --git a/Classes/Domain/Model/Coupon.php b/Classes/Domain/Model/Coupon.php
index 6c305e8e..be474e60 100644
--- a/Classes/Domain/Model/Coupon.php
+++ b/Classes/Domain/Model/Coupon.php
@@ -33,7 +33,8 @@ public function __construct(
         protected string $couponType,
         protected float $discount,
         protected int $taxClassId
-    ) {}
+    ) {
+    }
 
     public function getTitle(): string
     {
@@ -105,7 +106,7 @@ public function getNumberUsed(): int
      */
     public function incNumberUsed(): void
     {
-        $this->numberUsed += 1;
+        $this->numberUsed++;
     }
 
     public function setNumberUsed(int $numberUsed): void
diff --git a/Classes/Domain/Model/Order/AbstractAddress.php b/Classes/Domain/Model/Order/AbstractAddress.php
index 8906247b..7f34295c 100755
--- a/Classes/Domain/Model/Order/AbstractAddress.php
+++ b/Classes/Domain/Model/Order/AbstractAddress.php
@@ -11,14 +11,14 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 use TYPO3\CMS\Extbase\Persistence\Generic\LazyLoadingProxy;
 
-abstract class AbstractAddress extends AbstractEntity
+abstract class AbstractAddress extends AbstractEntity implements AddressInterface
 {
     #[Lazy]
-    protected LazyLoadingProxy|Item|null $item = null;
+    protected null|Item|LazyLoadingProxy $item = null;
 
     protected string $title = '';
 
diff --git a/Classes/Domain/Model/Order/AbstractService.php b/Classes/Domain/Model/Order/AbstractService.php
index 52afb128..dea67bff 100644
--- a/Classes/Domain/Model/Order/AbstractService.php
+++ b/Classes/Domain/Model/Order/AbstractService.php
@@ -11,25 +11,25 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 use TYPO3\CMS\Extbase\Persistence\Generic\LazyLoadingProxy;
 
 abstract class AbstractService extends AbstractEntity
 {
     #[Lazy]
-    protected LazyLoadingProxy|Item|null $item = null;
+    protected null|Item|LazyLoadingProxy $item = null;
 
     protected string $serviceCountry = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
-    protected ?int $serviceId = null;
+    #[Validate(validator: 'NotEmpty')]
+    protected int $serviceId;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $name = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $status = 'open';
 
     protected float $net = 0.0;
@@ -38,7 +38,7 @@ abstract class AbstractService extends AbstractEntity
 
     protected ?TaxClass $taxClass = null;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $tax = 0.0;
 
     protected string $note = '';
@@ -90,7 +90,7 @@ public function setServiceCountry(string $serviceCountry): void
         $this->serviceCountry = $serviceCountry;
     }
 
-    public function getServiceId(): ?int
+    public function getServiceId(): int
     {
         return $this->serviceId;
     }
diff --git a/Classes/Domain/Model/Order/AddressInterface.php b/Classes/Domain/Model/Order/AddressInterface.php
new file mode 100644
index 00000000..a7b6e260
--- /dev/null
+++ b/Classes/Domain/Model/Order/AddressInterface.php
@@ -0,0 +1,92 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Domain\Model\Order;
+
+interface AddressInterface
+{
+    public function toArray(): array;
+
+    public function setPid(int $pid): void;
+
+    public function getItem(): ?Item;
+
+    public function setItem(Item $item): void;
+
+    public function getTitle(): string;
+
+    public function setTitle(string $title): void;
+
+    public function getSalutation(): string;
+
+    public function setSalutation(string $salutation): void;
+
+    public function getFirstName(): string;
+
+    public function setFirstName(string $firstName): void;
+
+    public function getLastName(): string;
+
+    public function setLastName(string $lastName): void;
+
+    public function getSalutationLastName(): string;
+
+    public function getTitleLastName(): string;
+
+    public function getSalutationTitleLastName(): string;
+
+    public function getSalutationOrTitleLastName(): string;
+
+    public function getFullName(): string;
+
+    public function getSalutationFullName(): string;
+
+    public function getTitleFullName(): string;
+
+    public function getSalutationTitleFullName(): string;
+
+    public function getEmail(): string;
+
+    public function setEmail(string $email): void;
+
+    public function getCompany(): string;
+
+    public function setCompany(string $company): void;
+
+    public function getStreet(): string;
+
+    public function setStreet(string $street): void;
+
+    public function getStreetNumber(): string;
+
+    public function setStreetNumber(string $streetNumber): void;
+
+    public function getCity(): string;
+
+    public function setCity(string $city): void;
+
+    public function getAddition(): string;
+
+    public function setAddition(string $addition): void;
+
+    public function getZip(): string;
+
+    public function setZip(string $zip): void;
+
+    public function getCountry(): string;
+
+    public function setCountry(string $country): void;
+
+    public function getPhone(): string;
+
+    public function setPhone(string $phone): void;
+
+    public function getFax(): string;
+
+    public function setFax(string $fax): void;
+
+    public function getAdditional(): array;
+
+    public function setAdditional(array $additional): void;
+}
diff --git a/Classes/Domain/Model/Order/Discount.php b/Classes/Domain/Model/Order/Discount.php
index 0c08964d..91783270 100644
--- a/Classes/Domain/Model/Order/Discount.php
+++ b/Classes/Domain/Model/Order/Discount.php
@@ -12,30 +12,31 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 use TYPO3\CMS\Extbase\Persistence\Generic\LazyLoadingProxy;
 
 class Discount extends AbstractEntity
 {
     #[Lazy]
-    protected LazyLoadingProxy|Item $item;
+    protected Item|LazyLoadingProxy $item;
 
     public function __construct(
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected string $title,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected string $code,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected float $gross,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected float $net,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected TaxClass $taxClass,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected float $tax
-    ) {}
+    ) {
+    }
 
     public function getItem(): ?Item
     {
diff --git a/Classes/Domain/Model/Order/Item.php b/Classes/Domain/Model/Order/Item.php
index fc432306..7525bbcb 100644
--- a/Classes/Domain/Model/Order/Item.php
+++ b/Classes/Domain/Model/Order/Item.php
@@ -11,9 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use DateTime;
 use Extcode\Cart\Domain\Model\FrontendUser;
 use Extcode\Cart\Property\Exception\ResetPropertyException;
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
 use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
@@ -26,15 +27,15 @@ class Item extends AbstractEntity
 
     protected string $orderNumber = '';
 
-    protected ?\DateTime $orderDate = null;
+    protected ?DateTime $orderDate = null;
 
     protected string $invoiceNumber = '';
 
-    protected ?\DateTime $invoiceDate = null;
+    protected ?DateTime $invoiceDate = null;
 
     protected string $deliveryNumber = '';
 
-    protected ?\DateTime $deliveryDate = null;
+    protected ?DateTime $deliveryDate = null;
 
     protected bool $shippingSameAsBilling = false;
 
@@ -112,7 +113,7 @@ class Item extends AbstractEntity
      */
     protected ObjectStorage $deliveryPdfs;
 
-    protected \DateTime $crdate;
+    protected DateTime $crdate;
 
     protected bool $acceptTermsAndConditions = false;
 
@@ -127,18 +128,6 @@ public function __construct()
         $this->initStorageObjects();
     }
 
-    protected function initStorageObjects(): void
-    {
-        $this->products = new ObjectStorage();
-        $this->discounts = new ObjectStorage();
-        $this->taxClass = new ObjectStorage();
-        $this->tax = new ObjectStorage();
-        $this->totalTax = new ObjectStorage();
-        $this->orderPdfs = new ObjectStorage();
-        $this->invoicePdfs = new ObjectStorage();
-        $this->deliveryPdfs = new ObjectStorage();
-    }
-
     public function setCartPid(int $cartPid): void
     {
         $this->cartPid = $cartPid;
@@ -176,15 +165,16 @@ public function setOrderNumber(string $orderNumber): string
                 throw new ResetPropertyException('Could not reset orderNumber', 1395306283);
             }
         }
+
         return $this->orderNumber;
     }
 
-    public function getOrderDate(): ?\DateTime
+    public function getOrderDate(): ?DateTime
     {
         return $this->orderDate;
     }
 
-    public function setOrderDate(\DateTime $orderDate): void
+    public function setOrderDate(DateTime $orderDate): void
     {
         $this->orderDate = $orderDate;
     }
@@ -206,15 +196,16 @@ public function setInvoiceNumber(string $invoiceNumber): string
                 throw new ResetPropertyException('Could not reset invoiceNumber', 1395307266);
             }
         }
+
         return $this->invoiceNumber;
     }
 
-    public function getInvoiceDate(): ?\DateTime
+    public function getInvoiceDate(): ?DateTime
     {
         return $this->invoiceDate;
     }
 
-    public function setInvoiceDate(\DateTime $invoiceDate): void
+    public function setInvoiceDate(DateTime $invoiceDate): void
     {
         $this->invoiceDate = $invoiceDate;
     }
@@ -236,15 +227,16 @@ public function setDeliveryNumber(string $deliveryNumber): string
                 throw new ResetPropertyException('Could not reset deliveryNumber', 1475061197);
             }
         }
+
         return $this->deliveryNumber;
     }
 
-    public function getDeliveryDate(): ?\DateTime
+    public function getDeliveryDate(): ?DateTime
     {
         return $this->deliveryDate;
     }
 
-    public function setDeliveryDate(\DateTime $deliveryDate): void
+    public function setDeliveryDate(DateTime $deliveryDate): void
     {
         $this->deliveryDate = $deliveryDate;
     }
@@ -612,12 +604,12 @@ public function setTotalTax(ObjectStorage $taxes): void
         $this->totalTax = $taxes;
     }
 
-    public function getCrdate(): ?\DateTime
+    public function getCrdate(): ?DateTime
     {
         return $this->crdate;
     }
 
-    public function setCrdate(\DateTime $crdate): void
+    public function setCrdate(DateTime $crdate): void
     {
         $this->crdate = $crdate;
     }
@@ -675,4 +667,16 @@ public function setAdditional(array $additional): void
     {
         $this->additional = json_encode($additional);
     }
+
+    protected function initStorageObjects(): void
+    {
+        $this->products = new ObjectStorage();
+        $this->discounts = new ObjectStorage();
+        $this->taxClass = new ObjectStorage();
+        $this->tax = new ObjectStorage();
+        $this->totalTax = new ObjectStorage();
+        $this->orderPdfs = new ObjectStorage();
+        $this->invoicePdfs = new ObjectStorage();
+        $this->deliveryPdfs = new ObjectStorage();
+    }
 }
diff --git a/Classes/Domain/Model/Order/Payment.php b/Classes/Domain/Model/Order/Payment.php
index eabff708..744f5264 100644
--- a/Classes/Domain/Model/Order/Payment.php
+++ b/Classes/Domain/Model/Order/Payment.php
@@ -11,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
 
 class Payment extends AbstractService
diff --git a/Classes/Domain/Model/Order/Product.php b/Classes/Domain/Model/Order/Product.php
index 2d860ab7..f1129c94 100644
--- a/Classes/Domain/Model/Order/Product.php
+++ b/Classes/Domain/Model/Order/Product.php
@@ -11,8 +11,8 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\ORM\Lazy;
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\ORM\Lazy;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 use TYPO3\CMS\Extbase\Persistence\Generic\LazyLoadingProxy;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
@@ -20,37 +20,37 @@
 class Product extends AbstractEntity
 {
     #[Lazy]
-    protected LazyLoadingProxy|Item $item;
+    protected Item|LazyLoadingProxy $item;
 
     protected int $productId = 0;
 
     protected string $productType = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $sku = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $title = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected int $count = 0;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $price = 0.0;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $discount = 0.0;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $gross = 0.0;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $net = 0.0;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected TaxClass $taxClass;
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $tax = 0.0;
 
     protected string $additionalData = '';
@@ -70,11 +70,6 @@ public function __construct()
         $this->initStorageObjects();
     }
 
-    protected function initStorageObjects(): void
-    {
-        $this->productAdditional = new ObjectStorage();
-    }
-
     public function getItem(): ?Item
     {
         if ($this->item instanceof LazyLoadingProxy) {
@@ -243,4 +238,9 @@ public function setAdditional(array $additional): void
     {
         $this->additional = json_encode($additional);
     }
+
+    protected function initStorageObjects(): void
+    {
+        $this->productAdditional = new ObjectStorage();
+    }
 }
diff --git a/Classes/Domain/Model/Order/ProductAdditional.php b/Classes/Domain/Model/Order/ProductAdditional.php
index 78da1047..1304b55e 100644
--- a/Classes/Domain/Model/Order/ProductAdditional.php
+++ b/Classes/Domain/Model/Order/ProductAdditional.php
@@ -24,7 +24,8 @@ public function __construct(
         protected string $additionalKey,
         protected string $additionalValue,
         protected string $additionalData = ''
-    ) {}
+    ) {
+    }
 
     public function getAdditionalType(): string
     {
diff --git a/Classes/Domain/Model/Order/Shipping.php b/Classes/Domain/Model/Order/Shipping.php
index 39eadc9a..ea07b0bb 100644
--- a/Classes/Domain/Model/Order/Shipping.php
+++ b/Classes/Domain/Model/Order/Shipping.php
@@ -11,4 +11,6 @@
  * LICENSE file that was distributed with this source code.
  */
 
-class Shipping extends AbstractService {}
+class Shipping extends AbstractService
+{
+}
diff --git a/Classes/Domain/Model/Order/ShippingAddress.php b/Classes/Domain/Model/Order/ShippingAddress.php
index f2061a70..d299e3c6 100644
--- a/Classes/Domain/Model/Order/ShippingAddress.php
+++ b/Classes/Domain/Model/Order/ShippingAddress.php
@@ -11,4 +11,6 @@
  * LICENSE file that was distributed with this source code.
  */
 
-class ShippingAddress extends AbstractAddress {}
+class ShippingAddress extends AbstractAddress
+{
+}
diff --git a/Classes/Domain/Model/Order/Tax.php b/Classes/Domain/Model/Order/Tax.php
index 02091102..8ec52b21 100644
--- a/Classes/Domain/Model/Order/Tax.php
+++ b/Classes/Domain/Model/Order/Tax.php
@@ -11,17 +11,18 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 
 class Tax extends AbstractEntity
 {
     public function __construct(
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected float $tax,
-        #[Validate(['validator' => 'NotEmpty'])]
+        #[Validate(validator: 'NotEmpty')]
         protected TaxClass $taxClass
-    ) {}
+    ) {
+    }
 
     public function getTax(): float
     {
diff --git a/Classes/Domain/Model/Order/TaxClass.php b/Classes/Domain/Model/Order/TaxClass.php
index 87cbc680..8c41a88b 100644
--- a/Classes/Domain/Model/Order/TaxClass.php
+++ b/Classes/Domain/Model/Order/TaxClass.php
@@ -11,18 +11,18 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 
 class TaxClass extends AbstractEntity
 {
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $title = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $value = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected float $calc = 0.0;
 
     public function toArray(): array
diff --git a/Classes/Domain/Model/Product/AbstractProduct.php b/Classes/Domain/Model/Product/AbstractProduct.php
index 2787693d..4c403b08 100644
--- a/Classes/Domain/Model/Product/AbstractProduct.php
+++ b/Classes/Domain/Model/Product/AbstractProduct.php
@@ -10,15 +10,15 @@
  * For the full copyright and license information, please read the
  * LICENSE file that was distributed with this source code.
  */
-use TYPO3\CMS\Extbase\Annotation\Validate;
+use TYPO3\CMS\Extbase\Attribute\Validate;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
 
 abstract class AbstractProduct extends AbstractEntity
 {
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $sku = '';
 
-    #[Validate(['validator' => 'NotEmpty'])]
+    #[Validate(validator: 'NotEmpty')]
     protected string $title = '';
 
     protected string $teaser = '';
diff --git a/Classes/Domain/Model/Product/CategoryTrait.php b/Classes/Domain/Model/Product/CategoryTrait.php
index cc0df96b..88dd1ca0 100644
--- a/Classes/Domain/Model/Product/CategoryTrait.php
+++ b/Classes/Domain/Model/Product/CategoryTrait.php
@@ -14,7 +14,7 @@
 use TYPO3\CMS\Extbase\Domain\Model\Category;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
 
-trait CategoryTrait
+trait CategoryTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     protected ?Category $category = null;
 
diff --git a/Classes/Domain/Model/Product/FileAndImageTrait.php b/Classes/Domain/Model/Product/FileAndImageTrait.php
index b5447e49..ff5ae5ba 100644
--- a/Classes/Domain/Model/Product/FileAndImageTrait.php
+++ b/Classes/Domain/Model/Product/FileAndImageTrait.php
@@ -13,7 +13,7 @@
 use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
 
-trait FileAndImageTrait
+trait FileAndImageTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     /**
      * @var ObjectStorage<FileReference>
diff --git a/Classes/Domain/Model/Product/MeasureTrait.php b/Classes/Domain/Model/Product/MeasureTrait.php
index fb1931f7..7697c321 100644
--- a/Classes/Domain/Model/Product/MeasureTrait.php
+++ b/Classes/Domain/Model/Product/MeasureTrait.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Model\Product;
 
 /*
@@ -9,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-trait MeasureTrait
+trait MeasureTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     protected float $priceMeasure = 0.0;
 
@@ -89,8 +91,7 @@ public function isMeasureUnitCompatibility(): bool
     {
         foreach ($this->measureUnits as $measureUnitGroup) {
             if (
-                isset($measureUnitGroup[$this->priceMeasureUnit])
-                && isset($measureUnitGroup[$this->basePriceMeasureUnit])
+                isset($measureUnitGroup[$this->priceMeasureUnit], $measureUnitGroup[$this->basePriceMeasureUnit])
             ) {
                 return true;
             }
@@ -105,10 +106,10 @@ public function getMeasureUnitFactor(): float
 
         foreach ($this->measureUnits as $measureUnit) {
             if (array_key_exists($this->priceMeasureUnit, $measureUnit)) {
-                $factor = $factor / ($this->priceMeasure / $measureUnit[$this->priceMeasureUnit]);
+                $factor /= ($this->priceMeasure / $measureUnit[$this->priceMeasureUnit]);
             }
             if (array_key_exists($this->basePriceMeasureUnit, $measureUnit)) {
-                $factor = $factor * (1.0 / $measureUnit[$this->basePriceMeasureUnit]);
+                $factor *= (1.0 / $measureUnit[$this->basePriceMeasureUnit]);
             }
         }
 
diff --git a/Classes/Domain/Model/Product/ServiceAttributeTrait.php b/Classes/Domain/Model/Product/ServiceAttributeTrait.php
index cf1face1..ab931e1b 100644
--- a/Classes/Domain/Model/Product/ServiceAttributeTrait.php
+++ b/Classes/Domain/Model/Product/ServiceAttributeTrait.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Model\Product;
 
 /*
@@ -9,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-trait ServiceAttributeTrait
+trait ServiceAttributeTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     protected float $serviceAttribute1 = 0.0;
 
diff --git a/Classes/Domain/Model/Product/StockTrait.php b/Classes/Domain/Model/Product/StockTrait.php
index ffae62dc..b2e7c44f 100644
--- a/Classes/Domain/Model/Product/StockTrait.php
+++ b/Classes/Domain/Model/Product/StockTrait.php
@@ -11,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-trait StockTrait
+trait StockTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     protected bool $handleStock = false;
 
diff --git a/Classes/Domain/Model/Product/TagTrait.php b/Classes/Domain/Model/Product/TagTrait.php
index 23e238d3..22301e13 100644
--- a/Classes/Domain/Model/Product/TagTrait.php
+++ b/Classes/Domain/Model/Product/TagTrait.php
@@ -14,7 +14,7 @@
 use Extcode\Cart\Domain\Model\Tag;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
 
-trait TagTrait
+trait TagTrait // @phpstan-ignore trait.unused (provided for product extensions)
 {
     /**
      * @var ObjectStorage<Tag>
diff --git a/Classes/Domain/Model/Tag.php b/Classes/Domain/Model/Tag.php
index fe0b6bac..786447ce 100644
--- a/Classes/Domain/Model/Tag.php
+++ b/Classes/Domain/Model/Tag.php
@@ -15,7 +15,10 @@
 
 class Tag extends AbstractEntity
 {
-    public function __construct(protected string $title) {}
+    public function __construct(
+        protected string $title
+    ) {
+    }
 
     public function getTitle(): string
     {
diff --git a/Classes/Domain/Repository/CartRepository.php b/Classes/Domain/Repository/CartRepository.php
index 537f0e7f..6b55cf70 100644
--- a/Classes/Domain/Repository/CartRepository.php
+++ b/Classes/Domain/Repository/CartRepository.php
@@ -13,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class CartRepository extends Repository {}
+class CartRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/CouponRepository.php b/Classes/Domain/Repository/CouponRepository.php
index 2449bd19..619f89d9 100644
--- a/Classes/Domain/Repository/CouponRepository.php
+++ b/Classes/Domain/Repository/CouponRepository.php
@@ -13,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class CouponRepository extends Repository {}
+class CouponRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/FrontendUserGroupRepository.php b/Classes/Domain/Repository/FrontendUserGroupRepository.php
index d62df719..d75e68a8 100644
--- a/Classes/Domain/Repository/FrontendUserGroupRepository.php
+++ b/Classes/Domain/Repository/FrontendUserGroupRepository.php
@@ -13,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class FrontendUserGroupRepository extends Repository {}
+class FrontendUserGroupRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/FrontendUserRepository.php b/Classes/Domain/Repository/FrontendUserRepository.php
index 467b1097..8c4edc87 100644
--- a/Classes/Domain/Repository/FrontendUserRepository.php
+++ b/Classes/Domain/Repository/FrontendUserRepository.php
@@ -13,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class FrontendUserRepository extends Repository {}
+class FrontendUserRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/BillingAddressRepository.php b/Classes/Domain/Repository/Order/BillingAddressRepository.php
index e97812ce..b048447e 100644
--- a/Classes/Domain/Repository/Order/BillingAddressRepository.php
+++ b/Classes/Domain/Repository/Order/BillingAddressRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class BillingAddressRepository extends Repository {}
+class BillingAddressRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/DiscountRepository.php b/Classes/Domain/Repository/Order/DiscountRepository.php
index 9d30d764..5a2b8c19 100644
--- a/Classes/Domain/Repository/Order/DiscountRepository.php
+++ b/Classes/Domain/Repository/Order/DiscountRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class DiscountRepository extends Repository {}
+class DiscountRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/ItemRepository.php b/Classes/Domain/Repository/Order/ItemRepository.php
index aa688318..b7e96a89 100644
--- a/Classes/Domain/Repository/Order/ItemRepository.php
+++ b/Classes/Domain/Repository/Order/ItemRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -39,10 +41,8 @@ public function findOneByOrderNumber(string $orderNumber): ?DomainObjectInterfac
 
     /**
      * Find all orders filtered by $searchArguments
-     *
-     * @return QueryResultInterface|array
      */
-    public function findAll(array $searchArguments = [])
+    public function findAll(array $searchArguments = []): QueryResultInterface|array
     {
         $query = $this->createQuery();
 
@@ -82,19 +82,19 @@ protected function getFilterConstraints(array $searchArguments, QueryInterface $
                     $and[] = $query->like('orderNumber', $value);
                     break;
                 case 'orderDateStart':
-                    $and[] = $query->greaterThan('orderDate', strtotime((string)$value));
+                    $and[] = $query->greaterThan('orderDate', strtotime((string) $value));
                     break;
                 case 'orderDateEnd':
-                    $and[] = $query->lessThan('orderDate', strtotime((string)$value) + 86400);
+                    $and[] = $query->lessThan('orderDate', strtotime((string) $value) + 86400);
                     break;
                 case 'invoiceNumber':
                     $and[] = $query->like('invoiceNumber', $value);
                     break;
                 case 'invoiceDateStart':
-                    $and[] = $query->greaterThan('invoiceDate', strtotime((string)$value));
+                    $and[] = $query->greaterThan('invoiceDate', strtotime((string) $value));
                     break;
                 case 'invoiceDateEnd':
-                    $and[] = $query->lessThan('invoiceDate', strtotime((string)$value) + 86400);
+                    $and[] = $query->lessThan('invoiceDate', strtotime((string) $value) + 86400);
                     break;
                 case 'paymentStatus':
                     if ($value !== 'all') {
diff --git a/Classes/Domain/Repository/Order/PaymentRepository.php b/Classes/Domain/Repository/Order/PaymentRepository.php
index e26131d4..3bc01d1f 100644
--- a/Classes/Domain/Repository/Order/PaymentRepository.php
+++ b/Classes/Domain/Repository/Order/PaymentRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class PaymentRepository extends Repository {}
+class PaymentRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/ProductAdditionalRepository.php b/Classes/Domain/Repository/Order/ProductAdditionalRepository.php
index 56b65baa..99b70339 100644
--- a/Classes/Domain/Repository/Order/ProductAdditionalRepository.php
+++ b/Classes/Domain/Repository/Order/ProductAdditionalRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -24,16 +26,16 @@ public function findAllByAdditionalType(array $arguments = [], string $additiona
         ];
 
         if (isset($arguments['filter'])) {
-            foreach ((array)$arguments['filter'] as $field => $value) {
+            foreach ((array) $arguments['filter'] as $field => $value) {
                 if ($field === 'start' && !empty($value)) {
-                    $and[] = $query->greaterThan('crdate', strtotime((string)$value));
+                    $and[] = $query->greaterThan('crdate', strtotime((string) $value));
                 } elseif ($field === 'stop' && !empty($value)) {
-                    $and[] = $query->lessThan('crdate', strtotime((string)$value));
+                    $and[] = $query->lessThan('crdate', strtotime((string) $value));
                 }
             }
         }
 
-        $constraint = $query->logicalAnd($and);
+        $constraint = $query->logicalAnd(...$and);
         $query->matching($constraint);
 
         return $query->execute();
diff --git a/Classes/Domain/Repository/Order/ProductRepository.php b/Classes/Domain/Repository/Order/ProductRepository.php
index 05f81e25..8d0a7884 100644
--- a/Classes/Domain/Repository/Order/ProductRepository.php
+++ b/Classes/Domain/Repository/Order/ProductRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -17,10 +19,8 @@ class ProductRepository extends Repository
 {
     /**
      * Find all products
-     *
-     * @return QueryResultInterface|array
      */
-    public function findAll(array $searchArguments = [])
+    public function findAll(array $searchArguments = []): QueryResultInterface|array
     {
         $query = $this->createQuery();
 
@@ -38,11 +38,11 @@ protected function getFilterConstraints(array $searchArguments, QueryInterface $
         $and = [];
 
         if (isset($searchArguments['filter'])) {
-            foreach ((array)$searchArguments['filter'] as $field => $value) {
+            foreach ((array) $searchArguments['filter'] as $field => $value) {
                 if ($field == 'start' && !empty($value)) {
-                    $and[] = $query->greaterThan('crdate', strtotime((string)$value));
+                    $and[] = $query->greaterThan('crdate', strtotime((string) $value));
                 } elseif ($field == 'stop' && !empty($value)) {
-                    $and[] = $query->lessThan('crdate', strtotime((string)$value));
+                    $and[] = $query->lessThan('crdate', strtotime((string) $value));
                 }
             }
         }
diff --git a/Classes/Domain/Repository/Order/ShippingAddressRepository.php b/Classes/Domain/Repository/Order/ShippingAddressRepository.php
index 53fa7676..e360b576 100644
--- a/Classes/Domain/Repository/Order/ShippingAddressRepository.php
+++ b/Classes/Domain/Repository/Order/ShippingAddressRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class ShippingAddressRepository extends Repository {}
+class ShippingAddressRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/ShippingRepository.php b/Classes/Domain/Repository/Order/ShippingRepository.php
index 9f7f7257..8d106153 100644
--- a/Classes/Domain/Repository/Order/ShippingRepository.php
+++ b/Classes/Domain/Repository/Order/ShippingRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class ShippingRepository extends Repository {}
+class ShippingRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/TaxClassRepository.php b/Classes/Domain/Repository/Order/TaxClassRepository.php
index f339f718..5c819c75 100644
--- a/Classes/Domain/Repository/Order/TaxClassRepository.php
+++ b/Classes/Domain/Repository/Order/TaxClassRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class TaxClassRepository extends Repository {}
+class TaxClassRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/TaxRepository.php b/Classes/Domain/Repository/Order/TaxRepository.php
index 2df2bc8e..d915d3d2 100644
--- a/Classes/Domain/Repository/Order/TaxRepository.php
+++ b/Classes/Domain/Repository/Order/TaxRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class TaxRepository extends Repository {}
+class TaxRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Repository/Order/TransactionRepository.php b/Classes/Domain/Repository/Order/TransactionRepository.php
index 95419cb8..26629f2c 100644
--- a/Classes/Domain/Repository/Order/TransactionRepository.php
+++ b/Classes/Domain/Repository/Order/TransactionRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Repository\Order;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Persistence\Repository;
 
-class TransactionRepository extends Repository {}
+class TransactionRepository extends Repository
+{
+}
diff --git a/Classes/Domain/Validator/OrderItemValidator.php b/Classes/Domain/Validator/OrderItemValidator.php
index c57d9df3..6db899e4 100644
--- a/Classes/Domain/Validator/OrderItemValidator.php
+++ b/Classes/Domain/Validator/OrderItemValidator.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Domain\Validator;
 
 /*
@@ -9,10 +11,12 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use SplObjectStorage;
 use TYPO3\CMS\Extbase\Error\Result;
 use TYPO3\CMS\Extbase\Validation\Validator\AbstractGenericObjectValidator;
 use TYPO3\CMS\Extbase\Validation\Validator\ObjectValidatorInterface;
 use TYPO3\CMS\Extbase\Validation\Validator\ValidatorInterface;
+use Traversable;
 
 /**
  * A generic object validator which allows for specifying property validators
@@ -39,6 +43,27 @@ public function validate(mixed $value): Result
         return $this->result;
     }
 
+    /**
+     * Adds the given validator for validation of the specified property.
+     */
+    public function addPropertyValidator(string $propertyName, ValidatorInterface $validator): void
+    {
+        if (!isset($this->propertyValidators[$propertyName])) {
+            $this->propertyValidators[$propertyName] = new SplObjectStorage();
+        }
+        $this->propertyValidators[$propertyName]->offsetSet($validator);
+    }
+
+    public function countPropertyValidators(): int
+    {
+        $count = 0;
+        foreach ($this->propertyValidators as $propertyValidators) {
+            $count += $propertyValidators->count();
+        }
+
+        return $count;
+    }
+
     /**
      * Load the property value to be used for validation.
      * In case the object is a doctrine proxy, we need to load the real instance first.
@@ -61,7 +86,7 @@ protected function getPropertyValue(object $object, string $propertyName): mixed
      * Checks if the specified property of the given object is valid, and adds
      * found errors to the $messages object.
      */
-    protected function checkProperty(mixed $value, \Traversable $validators, string $propertyName): void
+    protected function checkProperty(mixed $value, Traversable $validators, string $propertyName): void
     {
         $result = null;
         foreach ($validators as $validator) {
@@ -69,7 +94,7 @@ protected function checkProperty(mixed $value, \Traversable $validators, string
                 $validator->setValidatedInstancesContainer($this->validatedInstancesContainer);
             }
 
-            /**
+            /*
              * File upload validation.
              *
              * If a $_FILES array is found in the request data,
@@ -77,10 +102,7 @@ protected function checkProperty(mixed $value, \Traversable $validators, string
              * single file.
              */
             if (
-                isset($value[0]['name'])
-                && isset($value[0]['type'])
-                && isset($value[0]['tmp_name'])
-                && isset($value[0]['size'])
+                isset($value[0]['name'], $value[0]['type'], $value[0]['tmp_name'], $value[0]['size'])
             ) {
                 foreach ($value as $file) {
                     $currentResult = $validator->validate($file);
@@ -119,37 +141,17 @@ protected function isValid(mixed $object): void
         }
     }
 
-    /**
-     * Adds the given validator for validation of the specified property.
-     */
-    public function addPropertyValidator(string $propertyName, ValidatorInterface $validator): void
-    {
-        if (!isset($this->propertyValidators[$propertyName])) {
-            $this->propertyValidators[$propertyName] = new \SplObjectStorage();
-        }
-        $this->propertyValidators[$propertyName]->attach($validator);
-    }
-
     protected function isValidatedAlready(object $object): bool
     {
         if ($this->validatedInstancesContainer === null) {
-            $this->validatedInstancesContainer = new \SplObjectStorage();
+            $this->validatedInstancesContainer = new SplObjectStorage();
         }
-        if ($this->validatedInstancesContainer->contains($object)) {
+        if ($this->validatedInstancesContainer->offsetExists($object)) {
             return true;
         }
 
-        $this->validatedInstancesContainer->attach($object);
+        $this->validatedInstancesContainer->offsetSet($object);
 
         return false;
     }
-
-    public function countPropertyValidators(): int
-    {
-        $count = 0;
-        foreach ($this->propertyValidators as $propertyValidators) {
-            $count += $propertyValidators->count();
-        }
-        return $count;
-    }
 }
diff --git a/Classes/Event/Cart/BeforeShowCartEvent.php b/Classes/Event/Cart/BeforeShowCartEvent.php
index 88bc36d9..43ee1e73 100644
--- a/Classes/Event/Cart/BeforeShowCartEvent.php
+++ b/Classes/Event/Cart/BeforeShowCartEvent.php
@@ -12,9 +12,8 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Domain\Model\Order\BillingAddress;
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Extcode\Cart\Domain\Model\Order\Item;
-use Extcode\Cart\Domain\Model\Order\ShippingAddress;
 use Psr\EventDispatcher\StoppableEventInterface;
 
 final class BeforeShowCartEvent implements StoppableEventInterface
@@ -24,9 +23,10 @@ final class BeforeShowCartEvent implements StoppableEventInterface
     public function __construct(
         private Cart $cart,
         private ?Item $orderItem = null,
-        private ?BillingAddress $billingAddress = null,
-        private ?ShippingAddress $shippingAddress = null
-    ) {}
+        private ?AddressInterface $billingAddress = null,
+        private ?AddressInterface $shippingAddress = null
+    ) {
+    }
 
     public function getCart(): Cart
     {
@@ -48,22 +48,22 @@ public function setOrderItem(Item $orderItem): void
         $this->orderItem = $orderItem;
     }
 
-    public function getBillingAddress(): ?BillingAddress
+    public function getBillingAddress(): ?AddressInterface
     {
         return $this->billingAddress;
     }
 
-    public function setBillingAddress(BillingAddress $billingAddress): void
+    public function setBillingAddress(AddressInterface $billingAddress): void
     {
         $this->billingAddress = $billingAddress;
     }
 
-    public function getShippingAddress(): ?ShippingAddress
+    public function getShippingAddress(): ?AddressInterface
     {
         return $this->shippingAddress;
     }
 
-    public function setShippingAddress(ShippingAddress $shippingAddress): void
+    public function setShippingAddress(AddressInterface $shippingAddress): void
     {
         $this->shippingAddress = $shippingAddress;
     }
diff --git a/Classes/Event/Cart/UpdateCountryEvent.php b/Classes/Event/Cart/UpdateCountryEvent.php
index 92bb889b..0a53ba21 100644
--- a/Classes/Event/Cart/UpdateCountryEvent.php
+++ b/Classes/Event/Cart/UpdateCountryEvent.php
@@ -12,21 +12,22 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 final readonly class UpdateCountryEvent implements UpdateCountryEventInterface
 {
     public function __construct(
         private Cart $cart,
-        private Request $request
-    ) {}
+        private RequestInterface $request
+    ) {
+    }
 
     public function getCart(): Cart
     {
         return $this->cart;
     }
 
-    public function getRequest(): Request
+    public function getRequest(): RequestInterface
     {
         return $this->request;
     }
diff --git a/Classes/Event/Cart/UpdateCountryEventInterface.php b/Classes/Event/Cart/UpdateCountryEventInterface.php
index 3fca882c..281d2495 100644
--- a/Classes/Event/Cart/UpdateCountryEventInterface.php
+++ b/Classes/Event/Cart/UpdateCountryEventInterface.php
@@ -1,15 +1,17 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Event\Cart;
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 interface UpdateCountryEventInterface
 {
-    public function __construct(Cart $cart, Request $request);
+    public function __construct(Cart $cart, RequestInterface $request);
 
     public function getCart(): Cart;
 
-    public function getRequest(): Request;
+    public function getRequest(): RequestInterface;
 }
diff --git a/Classes/Event/Cart/UpdateCurrencyEvent.php b/Classes/Event/Cart/UpdateCurrencyEvent.php
index a9bdb2b4..770a8549 100644
--- a/Classes/Event/Cart/UpdateCurrencyEvent.php
+++ b/Classes/Event/Cart/UpdateCurrencyEvent.php
@@ -12,22 +12,23 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 final readonly class UpdateCurrencyEvent implements UpdateCurrencyEventInterface
 {
     public function __construct(
         private Cart $cart,
-        private Request $request,
+        private RequestInterface $request,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
         return $this->cart;
     }
 
-    public function getRequest(): Request
+    public function getRequest(): RequestInterface
     {
         return $this->request;
     }
diff --git a/Classes/Event/Cart/UpdateCurrencyEventInterface.php b/Classes/Event/Cart/UpdateCurrencyEventInterface.php
index df64be90..ae79751a 100644
--- a/Classes/Event/Cart/UpdateCurrencyEventInterface.php
+++ b/Classes/Event/Cart/UpdateCurrencyEventInterface.php
@@ -1,17 +1,19 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Event\Cart;
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 interface UpdateCurrencyEventInterface
 {
-    public function __construct(Cart $cart, Request $request, array $settings);
+    public function __construct(Cart $cart, RequestInterface $request, array $settings);
 
     public function getCart(): Cart;
 
-    public function getRequest(): Request;
+    public function getRequest(): RequestInterface;
 
     public function getSettings(): array;
 }
diff --git a/Classes/Event/CheckProductAvailabilityEvent.php b/Classes/Event/CheckProductAvailabilityEvent.php
index 5d23c297..df9b4527 100644
--- a/Classes/Event/CheckProductAvailabilityEvent.php
+++ b/Classes/Event/CheckProductAvailabilityEvent.php
@@ -12,7 +12,7 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Domain\Model\Cart\Product;
+use Extcode\Cart\Domain\Model\Cart\ProductInterface;
 use TYPO3\CMS\Core\Messaging\FlashMessage;
 
 class CheckProductAvailabilityEvent implements CheckProductAvailabilityEventInterface
@@ -26,17 +26,18 @@ class CheckProductAvailabilityEvent implements CheckProductAvailabilityEventInte
 
     public function __construct(
         private readonly Cart $cart,
-        private readonly Product $product,
+        private readonly ProductInterface $product,
         private readonly mixed $quantity,
         private readonly string $mode = 'update'
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
         return $this->cart;
     }
 
-    public function getProduct(): Product
+    public function getProduct(): ProductInterface
     {
         return $this->product;
     }
diff --git a/Classes/Event/CheckProductAvailabilityEventInterface.php b/Classes/Event/CheckProductAvailabilityEventInterface.php
index b57bdaef..7ae61422 100644
--- a/Classes/Event/CheckProductAvailabilityEventInterface.php
+++ b/Classes/Event/CheckProductAvailabilityEventInterface.php
@@ -12,16 +12,21 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Domain\Model\Cart\Product;
+use Extcode\Cart\Domain\Model\Cart\ProductInterface;
 use TYPO3\CMS\Core\Messaging\FlashMessage;
 
 interface CheckProductAvailabilityEventInterface
 {
-    public function __construct(Cart $cart, Product $product, $quantity, string $mode = 'update');
+    public function __construct(
+        Cart $cart,
+        ProductInterface $product,
+        $quantity,
+        string $mode = 'update'
+    );
 
     public function getCart(): Cart;
 
-    public function getProduct(): Product;
+    public function getProduct(): ProductInterface;
 
     public function getQuantity();
 
diff --git a/Classes/Event/Form/AddToCartFinisherEvent.php b/Classes/Event/Form/AddToCartFinisherEvent.php
index 2df34ff1..8dcf8ec5 100644
--- a/Classes/Event/Form/AddToCartFinisherEvent.php
+++ b/Classes/Event/Form/AddToCartFinisherEvent.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Event\Form;
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
@@ -17,7 +19,8 @@ class AddToCartFinisherEvent
     public function __construct(
         private readonly array $formValues,
         private readonly Cart $cart
-    ) {}
+    ) {
+    }
 
     public function getFormValues(): array
     {
diff --git a/Classes/Event/Mail/AttachmentEvent.php b/Classes/Event/Mail/AttachmentEvent.php
index 0e0c5685..2064a063 100644
--- a/Classes/Event/Mail/AttachmentEvent.php
+++ b/Classes/Event/Mail/AttachmentEvent.php
@@ -13,7 +13,11 @@ final class AttachmentEvent implements StoppableEventInterface
 
     private bool $isPropagationStopped = false;
 
-    public function __construct(private readonly string $type, private ?Item $orderItem = null) {}
+    public function __construct(
+        private readonly string $type,
+        private ?Item $orderItem = null
+    ) {
+    }
 
     public function getType(): string
     {
diff --git a/Classes/Event/Order/CreateEvent.php b/Classes/Event/Order/CreateEvent.php
index 066dbc7e..66743079 100644
--- a/Classes/Event/Order/CreateEvent.php
+++ b/Classes/Event/Order/CreateEvent.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Order/FinishEvent.php b/Classes/Event/Order/FinishEvent.php
index 9a52bbf4..9daf6abd 100644
--- a/Classes/Event/Order/FinishEvent.php
+++ b/Classes/Event/Order/FinishEvent.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Order/NumberGeneratorEvent.php b/Classes/Event/Order/NumberGeneratorEvent.php
index f0a8c7c0..f9748aea 100644
--- a/Classes/Event/Order/NumberGeneratorEvent.php
+++ b/Classes/Event/Order/NumberGeneratorEvent.php
@@ -25,7 +25,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Order/PaymentEvent.php b/Classes/Event/Order/PaymentEvent.php
index ab215d7f..078adcdc 100644
--- a/Classes/Event/Order/PaymentEvent.php
+++ b/Classes/Event/Order/PaymentEvent.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Order/PersistOrderEvent.php b/Classes/Event/Order/PersistOrderEvent.php
index 28b42eda..de383959 100644
--- a/Classes/Event/Order/PersistOrderEvent.php
+++ b/Classes/Event/Order/PersistOrderEvent.php
@@ -25,7 +25,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
@@ -47,13 +48,18 @@ public function setSettings(array $settings): void
         $this->settings = $settings;
     }
 
+    /**
+     * @return int<0, max>
+     */
     public function getStoragePid(): int
     {
-        if (!isset($this->settings['settings']['order']['pid'])) {
-            return 0;
+        $orderPid = (int) ($this->settings['settings']['order']['pid'] ?? 0);
+
+        if ($orderPid < 0) {
+            $orderPid = 0;
         }
 
-        return (int)$this->settings['settings']['order']['pid'];
+        return $orderPid;
     }
 
     public function setPropagationStopped(bool $isPropagationStopped): void
diff --git a/Classes/Event/Order/StockEvent.php b/Classes/Event/Order/StockEvent.php
index 46ad18d5..b9d0cef1 100644
--- a/Classes/Event/Order/StockEvent.php
+++ b/Classes/Event/Order/StockEvent.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Order/UpdateServiceEvent.php b/Classes/Event/Order/UpdateServiceEvent.php
index e72f2769..4331f7c8 100644
--- a/Classes/Event/Order/UpdateServiceEvent.php
+++ b/Classes/Event/Order/UpdateServiceEvent.php
@@ -20,7 +20,8 @@ final class UpdateServiceEvent implements StoppableEventInterface
 
     public function __construct(
         private readonly AbstractService $service
-    ) {}
+    ) {
+    }
 
     public function getService(): AbstractService
     {
diff --git a/Classes/Event/ProcessOrderCheckStockEvent.php b/Classes/Event/ProcessOrderCheckStockEvent.php
index 6a86fb4a..414efb11 100644
--- a/Classes/Event/ProcessOrderCheckStockEvent.php
+++ b/Classes/Event/ProcessOrderCheckStockEvent.php
@@ -16,16 +16,17 @@
 
 final class ProcessOrderCheckStockEvent
 {
-    private bool $everyProductAvailable = true;
-
     /**
      * @var FlashMessage[]
      */
     protected array $insufficientStockMessages = [];
 
+    private bool $everyProductAvailable = true;
+
     public function __construct(
         private readonly Cart $cart
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/ProcessOrderCreateEvent.php b/Classes/Event/ProcessOrderCreateEvent.php
index 51567958..5b5b5ac7 100644
--- a/Classes/Event/ProcessOrderCreateEvent.php
+++ b/Classes/Event/ProcessOrderCreateEvent.php
@@ -20,7 +20,8 @@ public function __construct(
         private readonly Cart $cart,
         private readonly OrderItem $orderItem,
         private array $settings = []
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/ProcessOrderCreateEventInterface.php b/Classes/Event/ProcessOrderCreateEventInterface.php
index 644daef9..14ab0afd 100644
--- a/Classes/Event/ProcessOrderCreateEventInterface.php
+++ b/Classes/Event/ProcessOrderCreateEventInterface.php
@@ -13,4 +13,6 @@
 
 use Extcode\Cart\Event\Order\EventInterface;
 
-interface ProcessOrderCreateEventInterface extends EventInterface {}
+interface ProcessOrderCreateEventInterface extends EventInterface
+{
+}
diff --git a/Classes/Event/RetrieveProductsFromRequestEvent.php b/Classes/Event/RetrieveProductsFromRequestEvent.php
index b296b4b6..75131321 100644
--- a/Classes/Event/RetrieveProductsFromRequestEvent.php
+++ b/Classes/Event/RetrieveProductsFromRequestEvent.php
@@ -14,7 +14,7 @@
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\Product;
 use TYPO3\CMS\Core\Messaging\FlashMessage;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 final class RetrieveProductsFromRequestEvent implements RetrieveProductsFromRequestEventInterface
 {
@@ -31,16 +31,17 @@ final class RetrieveProductsFromRequestEvent implements RetrieveProductsFromRequ
     private array $products = [];
 
     public function __construct(
-        private readonly Request $request,
+        private readonly RequestInterface $request,
         private readonly Cart $cart
-    ) {}
+    ) {
+    }
 
     public function getCart(): Cart
     {
         return $this->cart;
     }
 
-    public function getRequest(): Request
+    public function getRequest(): RequestInterface
     {
         return $this->request;
     }
diff --git a/Classes/Event/RetrieveProductsFromRequestEventInterface.php b/Classes/Event/RetrieveProductsFromRequestEventInterface.php
index 210e0075..7424af71 100644
--- a/Classes/Event/RetrieveProductsFromRequestEventInterface.php
+++ b/Classes/Event/RetrieveProductsFromRequestEventInterface.php
@@ -13,15 +13,15 @@
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Psr\EventDispatcher\StoppableEventInterface;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 interface RetrieveProductsFromRequestEventInterface extends StoppableEventInterface
 {
-    public function __construct(Request $request, Cart $cart);
+    public function __construct(RequestInterface $request, Cart $cart);
 
     public function getCart(): Cart;
 
-    public function getRequest(): Request;
+    public function getRequest(): RequestInterface;
 
     public function getProducts(): array;
 
diff --git a/Classes/Event/Session/AfterRestoreAddressEvent.php b/Classes/Event/Session/AfterRestoreAddressEvent.php
index bac93f87..418a0c4b 100644
--- a/Classes/Event/Session/AfterRestoreAddressEvent.php
+++ b/Classes/Event/Session/AfterRestoreAddressEvent.php
@@ -11,21 +11,24 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use Extcode\Cart\Domain\Model\Order\AbstractAddress;
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Psr\EventDispatcher\StoppableEventInterface;
 
 final class AfterRestoreAddressEvent implements StoppableEventInterface
 {
     private bool $isPropagationStopped = false;
 
-    public function __construct(private AbstractAddress $address) {}
+    public function __construct(
+        private AddressInterface $address
+    ) {
+    }
 
-    public function getAddress(): AbstractAddress
+    public function getAddress(): AddressInterface
     {
         return $this->address;
     }
 
-    public function setCart(AbstractAddress $address): void
+    public function setCart(AddressInterface $address): void
     {
         $this->address = $address;
     }
diff --git a/Classes/Event/Session/AfterRestoreCartEvent.php b/Classes/Event/Session/AfterRestoreCartEvent.php
index 74b4321b..8b9e39cc 100644
--- a/Classes/Event/Session/AfterRestoreCartEvent.php
+++ b/Classes/Event/Session/AfterRestoreCartEvent.php
@@ -18,7 +18,10 @@ final class AfterRestoreCartEvent implements StoppableEventInterface
 {
     private bool $isPropagationStopped = false;
 
-    public function __construct(private Cart $cart) {}
+    public function __construct(
+        private Cart $cart
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Session/BeforeWriteAddressEvent.php b/Classes/Event/Session/BeforeWriteAddressEvent.php
index 13972bb4..66fb2e20 100644
--- a/Classes/Event/Session/BeforeWriteAddressEvent.php
+++ b/Classes/Event/Session/BeforeWriteAddressEvent.php
@@ -11,21 +11,24 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use Extcode\Cart\Domain\Model\Order\AbstractAddress;
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Psr\EventDispatcher\StoppableEventInterface;
 
 final class BeforeWriteAddressEvent implements StoppableEventInterface
 {
     private bool $isPropagationStopped = false;
 
-    public function __construct(private AbstractAddress $address) {}
+    public function __construct(
+        private AddressInterface $address
+    ) {
+    }
 
-    public function getAddress(): AbstractAddress
+    public function getAddress(): AddressInterface
     {
         return $this->address;
     }
 
-    public function setCart(AbstractAddress $address): void
+    public function setCart(AddressInterface $address): void
     {
         $this->address = $address;
     }
diff --git a/Classes/Event/Session/BeforeWriteCartEvent.php b/Classes/Event/Session/BeforeWriteCartEvent.php
index 3f3bd955..a2a3545a 100644
--- a/Classes/Event/Session/BeforeWriteCartEvent.php
+++ b/Classes/Event/Session/BeforeWriteCartEvent.php
@@ -18,7 +18,10 @@ final class BeforeWriteCartEvent implements StoppableEventInterface
 {
     private bool $isPropagationStopped = false;
 
-    public function __construct(private Cart $cart) {}
+    public function __construct(
+        private Cart $cart
+    ) {
+    }
 
     public function getCart(): Cart
     {
diff --git a/Classes/Event/Template/Components/ModifyButtonBarEvent.php b/Classes/Event/Template/Components/ModifyButtonBarEvent.php
index f024b383..9dddf3fa 100644
--- a/Classes/Event/Template/Components/ModifyButtonBarEvent.php
+++ b/Classes/Event/Template/Components/ModifyButtonBarEvent.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly array $settings,
         private readonly array $searchArguments,
         private readonly ?Item $orderItem = null,
-    ) {}
+    ) {
+    }
 
     public function getRequest(): RequestInterface
     {
diff --git a/Classes/Event/Template/Components/ModifyModuleTemplateEvent.php b/Classes/Event/Template/Components/ModifyModuleTemplateEvent.php
index e88fe160..97908d19 100644
--- a/Classes/Event/Template/Components/ModifyModuleTemplateEvent.php
+++ b/Classes/Event/Template/Components/ModifyModuleTemplateEvent.php
@@ -20,7 +20,8 @@ public function __construct(
         private readonly RequestInterface $request,
         private readonly array $settings,
         private readonly ModuleTemplate $moduleTemplate,
-    ) {}
+    ) {
+    }
 
     public function getRequest(): RequestInterface
     {
diff --git a/Classes/Event/View/ModifyViewEvent.php b/Classes/Event/View/ModifyViewEvent.php
index 1d2a00f1..b1430dff 100644
--- a/Classes/Event/View/ModifyViewEvent.php
+++ b/Classes/Event/View/ModifyViewEvent.php
@@ -20,7 +20,8 @@ public function __construct(
         private readonly RequestInterface $request,
         private readonly array $settings,
         private readonly ViewInterface $view,
-    ) {}
+    ) {
+    }
 
     public function getRequest(): RequestInterface
     {
diff --git a/Classes/EventListener/Cart/UpdateCurrency.php b/Classes/EventListener/Cart/UpdateCurrency.php
index d661eb1f..86b182a1 100644
--- a/Classes/EventListener/Cart/UpdateCurrency.php
+++ b/Classes/EventListener/Cart/UpdateCurrency.php
@@ -36,7 +36,7 @@ public function __invoke(UpdateCurrencyEvent $event): void
             );
 
             $cart->setCurrencyTranslation(
-                (float)($settings['options'][$currencyConfigId]['translation'])
+                (float) ($settings['options'][$currencyConfigId]['translation'])
             );
         }
 
@@ -45,10 +45,10 @@ public function __invoke(UpdateCurrencyEvent $event): void
 
     protected function getCurrencyConfigId(string $currencyCode, array $currencyOptions): int
     {
-        if (strlen($currencyCode) === 3) {
+        if (mb_strlen($currencyCode) === 3) {
             foreach ($currencyOptions as $currencyOptionId => $currencyOption) {
                 if (is_array($currencyOption) && $currencyOption['code'] === $currencyCode) {
-                    return (int)$currencyOptionId;
+                    return (int) $currencyOptionId;
                 }
             }
         }
diff --git a/Classes/EventListener/Mail/AttachmentFromOrderItem.php b/Classes/EventListener/Mail/AttachmentFromOrderItem.php
index 235404d2..1a9c89f6 100644
--- a/Classes/EventListener/Mail/AttachmentFromOrderItem.php
+++ b/Classes/EventListener/Mail/AttachmentFromOrderItem.php
@@ -44,7 +44,7 @@ public function __invoke(AttachmentEvent $event): void
             if ($pdfData !== '1' && $pdfData !== 'true') {
                 continue;
             }
-            $getter = 'get' . ucfirst((string)$pdfType) . 'Pdfs';
+            $getter = 'get' . ucfirst((string) $pdfType) . 'Pdfs';
             $pdfs = $orderItem->$getter();
             if ($pdfs && ($pdfs instanceof ObjectStorage)) {
                 $documents = $pdfs->toArray();
diff --git a/Classes/EventListener/Order/Create/DeliveryNumber.php b/Classes/EventListener/Order/Create/DeliveryNumber.php
index b81b9c56..67f21868 100644
--- a/Classes/EventListener/Order/Create/DeliveryNumber.php
+++ b/Classes/EventListener/Order/Create/DeliveryNumber.php
@@ -11,15 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use DateTime;
 use Extcode\Cart\Event\Order\NumberGeneratorEventInterface;
 
 class DeliveryNumber extends Number
 {
-    protected function getRegistryName(NumberGeneratorEventInterface $event): string
-    {
-        return 'lastDelivery' . '_' . $event->getOrderItem()->getCartPid();
-    }
-
     public function __invoke(NumberGeneratorEventInterface $event): void
     {
         $onlyGenerateNumberOfType = $event->getOnlyGenerateNumberOfType();
@@ -30,10 +26,15 @@ public function __invoke(NumberGeneratorEventInterface $event): void
         $orderItem = $event->getOrderItem();
 
         $orderItem->setDeliveryNumber($this->generateNumber($event));
-        $orderItem->setDeliveryDate(new \DateTime());
+        $orderItem->setDeliveryDate(new DateTime());
 
         $this->orderItemRepository->update($orderItem);
 
         $this->persistenceManager->persistAll();
     }
+
+    protected function getRegistryName(NumberGeneratorEventInterface $event): string
+    {
+        return 'lastDelivery_' . $event->getOrderItem()->getCartPid();
+    }
 }
diff --git a/Classes/EventListener/Order/Create/InvoiceNumber.php b/Classes/EventListener/Order/Create/InvoiceNumber.php
index a6dfcd7b..a7d35da4 100644
--- a/Classes/EventListener/Order/Create/InvoiceNumber.php
+++ b/Classes/EventListener/Order/Create/InvoiceNumber.php
@@ -11,15 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use DateTime;
 use Extcode\Cart\Event\Order\NumberGeneratorEventInterface;
 
 class InvoiceNumber extends Number
 {
-    protected function getRegistryName(NumberGeneratorEventInterface $event): string
-    {
-        return 'lastInvoice' . '_' . $event->getOrderItem()->getCartPid();
-    }
-
     public function __invoke(NumberGeneratorEventInterface $event): void
     {
         $onlyGenerateNumberOfType = $event->getOnlyGenerateNumberOfType();
@@ -30,10 +26,15 @@ public function __invoke(NumberGeneratorEventInterface $event): void
         $orderItem = $event->getOrderItem();
 
         $orderItem->setInvoiceNumber($this->generateNumber($event));
-        $orderItem->setInvoiceDate(new \DateTime());
+        $orderItem->setInvoiceDate(new DateTime());
 
         $this->orderItemRepository->update($orderItem);
 
         $this->persistenceManager->persistAll();
     }
+
+    protected function getRegistryName(NumberGeneratorEventInterface $event): string
+    {
+        return 'lastInvoice_' . $event->getOrderItem()->getCartPid();
+    }
 }
diff --git a/Classes/EventListener/Order/Create/Number.php b/Classes/EventListener/Order/Create/Number.php
index ba1727c4..e3f8d07c 100644
--- a/Classes/EventListener/Order/Create/Number.php
+++ b/Classes/EventListener/Order/Create/Number.php
@@ -19,26 +19,17 @@
 
 abstract class Number
 {
-    protected PersistenceManager $persistenceManager;
-
-    protected OrderItemRepository $orderItemRepository;
-
-    protected array $options;
-
-    abstract protected function getRegistryName(NumberGeneratorEventInterface $event): string;
-
-    abstract public function __invoke(NumberGeneratorEventInterface $event): void;
-
     public function __construct(
-        PersistenceManager $persistenceManager,
-        OrderItemRepository $orderItemRepository,
-        array $options = []
+        protected PersistenceManager $persistenceManager,
+        protected OrderItemRepository $orderItemRepository,
+        protected array $options = []
     ) {
-        $this->persistenceManager = $persistenceManager;
-        $this->orderItemRepository = $orderItemRepository;
-        $this->options = $options;
     }
 
+    abstract public function __invoke(NumberGeneratorEventInterface $event): void;
+
+    abstract protected function getRegistryName(NumberGeneratorEventInterface $event): string;
+
     protected function generateNumber(NumberGeneratorEventInterface $event): string
     {
         $registry = GeneralUtility::makeInstance(Registry::class);
@@ -48,12 +39,13 @@ protected function generateNumber(NumberGeneratorEventInterface $event): string
         $registry->set('tx_cart', $this->getRegistryName($event), $numberInRegistry);
 
         $format = $this->options['format'] ?? '%d';
-        $numberInRegistryWithOffset = $numberInRegistry + (int)($this->options['offset'] ?? 0);
+        $numberInRegistryWithOffset = $numberInRegistry + (int) ($this->options['offset'] ?? 0);
+        $number = sprintf($format, $numberInRegistryWithOffset);
 
         return implode('', [
-            $this->options['prefix'] ?? '',
-            sprintf($format, $numberInRegistryWithOffset),
-            $this->options['suffix'] ?? '',
+            is_string($this->options['prefix']) ? $this->options['prefix'] : '',
+            $number,
+            is_string($this->options['suffix']) ? $this->options['suffix'] : '',
         ]);
     }
 }
diff --git a/Classes/EventListener/Order/Create/Order.php b/Classes/EventListener/Order/Create/Order.php
index ef6549c4..5504641d 100644
--- a/Classes/EventListener/Order/Create/Order.php
+++ b/Classes/EventListener/Order/Create/Order.php
@@ -21,7 +21,8 @@ class Order
     public function __construct(
         private readonly EventDispatcherInterface $eventDispatcher,
         private readonly PersistenceManager $persistenceManager
-    ) {}
+    ) {
+    }
 
     public function __invoke(EventInterface $event): void
     {
diff --git a/Classes/EventListener/Order/Create/OrderNumber.php b/Classes/EventListener/Order/Create/OrderNumber.php
index b7eb6f4e..d29d56ff 100644
--- a/Classes/EventListener/Order/Create/OrderNumber.php
+++ b/Classes/EventListener/Order/Create/OrderNumber.php
@@ -11,15 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use DateTime;
 use Extcode\Cart\Event\Order\NumberGeneratorEventInterface;
 
 class OrderNumber extends Number
 {
-    protected function getRegistryName(NumberGeneratorEventInterface $event): string
-    {
-        return 'lastOrder' . '_' . $event->getOrderItem()->getCartPid();
-    }
-
     public function __invoke(NumberGeneratorEventInterface $event): void
     {
         $onlyGenerateNumberOfType = $event->getOnlyGenerateNumberOfType();
@@ -31,7 +27,7 @@ public function __invoke(NumberGeneratorEventInterface $event): void
         $orderItem = $event->getOrderItem();
 
         $orderItem->setOrderNumber($this->generateNumber($event));
-        $orderItem->setOrderDate(new \DateTime());
+        $orderItem->setOrderDate(new DateTime());
 
         $this->orderItemRepository->update($orderItem);
 
@@ -40,4 +36,9 @@ public function __invoke(NumberGeneratorEventInterface $event): void
         $cart->setOrderId($orderItem->getUid());
         $cart->setOrderNumber($orderItem->getOrderNumber());
     }
+
+    protected function getRegistryName(NumberGeneratorEventInterface $event): string
+    {
+        return 'lastOrder_' . $event->getOrderItem()->getCartPid();
+    }
 }
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Coupons.php b/Classes/EventListener/Order/Create/PersistOrder/Coupons.php
index 698afe1e..7940acc8 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Coupons.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Coupons.php
@@ -27,7 +27,8 @@ public function __construct(
         private readonly ItemRepository $itemRepository,
         private readonly DiscountRepository $discountRepository,
         private readonly CouponRepository $couponRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Item.php b/Classes/EventListener/Order/Create/PersistOrder/Item.php
index 7b245c32..84adb2e1 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Item.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Item.php
@@ -17,7 +17,6 @@
 use Extcode\Cart\Domain\Repository\Order\ShippingAddressRepository;
 use Extcode\Cart\Event\Order\PersistOrderEvent;
 use TYPO3\CMS\Core\Context\Context;
-use TYPO3\CMS\Core\Context\UserAspect;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Persistence\Generic\PersistenceManager;
 
@@ -27,8 +26,10 @@ public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ItemRepository $itemRepository,
         private readonly BillingAddressRepository $billingAddressRepository,
-        private readonly ShippingAddressRepository $shippingAddressRepository
-    ) {}
+        private readonly ShippingAddressRepository $shippingAddressRepository,
+        private readonly Context $context
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
@@ -39,12 +40,9 @@ public function __invoke(PersistOrderEvent $event): void
 
         $orderItem->setPid($storagePid);
 
-        $userAspect = GeneralUtility::makeInstance(Context::class)->getAspect('frontend.user');
+        $userAspect = $this->context->getAspect('frontend.user');
 
-        if (
-            $userAspect instanceof UserAspect
-            && $userAspect->isLoggedIn()
-        ) {
+        if ($userAspect->isLoggedIn()) {
             $frontendUserRepository = GeneralUtility::makeInstance(
                 FrontendUserRepository::class
             );
@@ -63,8 +61,10 @@ public function __invoke(PersistOrderEvent $event): void
         $orderItem->setTotalGross($cart->getTotalGross());
         $orderItem->setTotalNet($cart->getTotalNet());
 
-        /* In multistep checkout the setting `shippingSameAsBilling` might get lost for the orderItem,
-           but it does not get lost for the cart as the cart is stored between every step in the session */
+        /*
+           * In multistep checkout the setting `shippingSameAsBilling` might get lost for the orderItem,
+           but it does not get lost for the cart as the cart is stored between every step in the session
+           */
         $orderItem->setShippingSameAsBilling($cart->isShippingSameAsBilling());
         if ($orderItem->isShippingSameAsBilling()) {
             $orderItem->removeShippingAddress();
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Payment.php b/Classes/EventListener/Order/Create/PersistOrder/Payment.php
index 3453a65e..3a0d0669 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Payment.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Payment.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ItemRepository $itemRepository,
         private readonly PaymentRepository $paymentRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Products.php b/Classes/EventListener/Order/Create/PersistOrder/Products.php
index 200dba2d..3d9abfbe 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Products.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Products.php
@@ -26,17 +26,18 @@
 
 class Products
 {
-    private Item $orderItem;
-
     protected array $taxClasses;
 
+    private Item $orderItem;
+
     private int $storagePid;
 
     public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ProductRepository $productRepository,
         private readonly ProductAdditionalRepository $productAdditionalRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
@@ -132,7 +133,7 @@ protected function addProductAdditional(
 
     protected function addVariantsOfVariant(BeVariantInterface $variant, int $level): void
     {
-        $level += 1;
+        $level++;
 
         foreach ($variant->getBeVariants() as $variantInner) {
             if ($variantInner->getBeVariants()) {
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Shipping.php b/Classes/EventListener/Order/Create/PersistOrder/Shipping.php
index c3707997..f753d4f9 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Shipping.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Shipping.php
@@ -23,7 +23,8 @@ public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ItemRepository $itemRepository,
         private readonly ShippingRepository $shippingRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
diff --git a/Classes/EventListener/Order/Create/PersistOrder/TaxClasses.php b/Classes/EventListener/Order/Create/PersistOrder/TaxClasses.php
index 1821f037..d1593887 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/TaxClasses.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/TaxClasses.php
@@ -24,7 +24,8 @@ public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ItemRepository $itemRepository,
         private readonly TaxClassRepository $taxClassRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
diff --git a/Classes/EventListener/Order/Create/PersistOrder/Taxes.php b/Classes/EventListener/Order/Create/PersistOrder/Taxes.php
index 449386dc..7d9301ad 100644
--- a/Classes/EventListener/Order/Create/PersistOrder/Taxes.php
+++ b/Classes/EventListener/Order/Create/PersistOrder/Taxes.php
@@ -25,7 +25,8 @@ public function __construct(
         private readonly PersistenceManager $persistenceManager,
         private readonly ItemRepository $itemRepository,
         private readonly TaxRepository $taxRepository
-    ) {}
+    ) {
+    }
 
     public function __invoke(PersistOrderEvent $event): void
     {
diff --git a/Classes/EventListener/Order/Finish/ClearCart.php b/Classes/EventListener/Order/Finish/ClearCart.php
index 88fbd26b..0ec596b5 100644
--- a/Classes/EventListener/Order/Finish/ClearCart.php
+++ b/Classes/EventListener/Order/Finish/ClearCart.php
@@ -11,10 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
 use Extcode\Cart\Domain\Model\Order\BillingAddress;
 use Extcode\Cart\Domain\Model\Order\ShippingAddress;
 use Extcode\Cart\Event\Order\EventInterface;
-use Extcode\Cart\Service\PaymentMethodsServiceInterface;
 use Extcode\Cart\Service\SessionHandler;
 use Extcode\Cart\Utility\CartUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
@@ -23,9 +23,10 @@ class ClearCart
 {
     public function __construct(
         protected readonly CartUtility $cartUtility,
-        protected readonly PaymentMethodsServiceInterface $paymentMethodsService,
+        protected readonly PaymentMethodsLoaderInterface $paymentMethodsLoader,
         protected readonly SessionHandler $sessionHandler
-    ) {}
+    ) {
+    }
 
     public function __invoke(EventInterface $event): void
     {
@@ -33,9 +34,9 @@ public function __invoke(EventInterface $event): void
         $settings = $event->getSettings();
 
         $paymentId = $cart->getPayment()->getId();
-        $paymentSettings = $this->paymentMethodsService->getConfigurationsForType('payments', $cart->getBillingCountry());
+        $paymentSettings = $this->paymentMethodsLoader->getPaymentMethods($cart);
 
-        if ((int)($paymentSettings['options'][$paymentId]['preventClearCart'] ?? 0) != 1) {
+        if ((int) ($paymentSettings['options'][$paymentId]['preventClearCart'] ?? 0) != 1) {
             $cartPid = $settings['settings']['cart']['pid'];
 
             $this->sessionHandler->writeCart(
diff --git a/Classes/EventListener/Order/Finish/Email.php b/Classes/EventListener/Order/Finish/Email.php
index e8dcc94b..07f9ff52 100644
--- a/Classes/EventListener/Order/Finish/Email.php
+++ b/Classes/EventListener/Order/Finish/Email.php
@@ -11,36 +11,37 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Order\Item;
 use Extcode\Cart\Event\Order\EventInterface;
 use Extcode\Cart\Service\MailHandler;
-use Extcode\Cart\Service\PaymentMethodsServiceInterface;
 
 class Email
 {
     public function __construct(
-        private readonly PaymentMethodsServiceInterface $paymentMethodsService,
+        private readonly PaymentMethodsLoaderInterface $paymentMethodsLoader,
         private readonly MailHandler $mailHandler,
-    ) {}
+    ) {
+    }
 
     public function __invoke(EventInterface $event): void
     {
         $orderItem = $event->getOrderItem();
 
-        $paymentMethods = $this->paymentMethodsService->getPaymentMethods($event->getCart());
+        $paymentMethods = $this->paymentMethodsLoader->getPaymentMethods($event->getCart());
         $paymentId = $orderItem->getPayment()->getServiceId();
         $paymentMethod = $paymentMethods[$paymentId] ?? null;
 
         if (
             method_exists($paymentMethod, 'isBuyerEmailDisabled') === false
-            || (method_exists($paymentMethod, 'isBuyerEmailDisabled') && $paymentMethod->isBuyerEmailDisabled() === false)
+            || $paymentMethod->isBuyerEmailDisabled() === false
         ) {
             $this->sendBuyerMail($orderItem, $event->getCart());
         }
         if (
             method_exists($paymentMethod, 'isSellerEmailDisabled') === false
-            || (method_exists($paymentMethod, 'isSellerEmailDisabled') && $paymentMethod->isSellerEmailDisabled() === false)
+            || $paymentMethod->isSellerEmailDisabled() === false
         ) {
             $this->sendSellerMail($orderItem, $event->getCart());
         }
diff --git a/Classes/EventListener/Order/Update/LogServiceUpdate.php b/Classes/EventListener/Order/Update/LogServiceUpdate.php
index cdc993a4..30aaeaad 100644
--- a/Classes/EventListener/Order/Update/LogServiceUpdate.php
+++ b/Classes/EventListener/Order/Update/LogServiceUpdate.php
@@ -18,7 +18,8 @@ class LogServiceUpdate
 {
     public function __construct(
         private readonly LoggerInterface $logger
-    ) {}
+    ) {
+    }
 
     public function __invoke(UpdateServiceEvent $event): void
     {
diff --git a/Classes/EventListener/Template/Components/ModifyButtonBar.php b/Classes/EventListener/Template/Components/ModifyButtonBar.php
index ed6b3dad..14bd0805 100644
--- a/Classes/EventListener/Template/Components/ModifyButtonBar.php
+++ b/Classes/EventListener/Template/Components/ModifyButtonBar.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\EventListener\Template\Components;
 
 use Extcode\Cart\Event\Template\Components\ModifyButtonBarEvent;
@@ -10,7 +12,8 @@ class ModifyButtonBar
 {
     public function __construct(
         private readonly UriBuilder $uriBuilder
-    ) {}
+    ) {
+    }
 
     public function __invoke(ModifyButtonBarEvent $event): void
     {
@@ -31,12 +34,12 @@ public function __invoke(ModifyButtonBarEvent $event): void
         }
     }
 
-    private function modifyListActionButtons(ModifyButtonBarEvent $event)
+    private function modifyListActionButtons(ModifyButtonBarEvent $event): void
     {
         $event->setButtons(
             array_merge(
                 $event->getButtons(),
-                [ 'action-export-csv' => [
+                ['action-export-csv' => [
                     'link' => $this->uriBuilder->reset()->setRequest($event->getRequest())
                         ->setArguments(['searchArguments' => $event->getSearchArguments()])
                         ->setFormat('csv')
@@ -51,12 +54,12 @@ private function modifyListActionButtons(ModifyButtonBarEvent $event)
         );
     }
 
-    private function modifyShowActionButtons(ModifyButtonBarEvent $event)
+    private function modifyShowActionButtons(ModifyButtonBarEvent $event): void
     {
         $event->setButtons(
             array_merge(
                 $event->getButtons(),
-                [ 'action-close' => [
+                ['action-close' => [
                     'link' => $this->uriBuilder->reset()->setRequest($event->getRequest())
                         ->uriFor(
                             'list'
diff --git a/Classes/Hooks/FormDefinitions.php b/Classes/Hooks/FormDefinitions.php
index da453df6..c8d9c66c 100644
--- a/Classes/Hooks/FormDefinitions.php
+++ b/Classes/Hooks/FormDefinitions.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Hooks;
 
 /*
@@ -9,6 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use LogicException;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 use TYPO3\CMS\Form\Mvc\Configuration\ConfigurationManagerInterface as ExtFormConfigurationManagerInterface;
 use TYPO3\CMS\Form\Mvc\Persistence\FormPersistenceManagerInterface;
@@ -19,7 +22,8 @@ public function __construct(
         private readonly FormPersistenceManagerInterface $formPersistenceManager,
         private readonly ConfigurationManagerInterface $configurationManager,
         private readonly ExtFormConfigurationManagerInterface $extFormConfigurationManager,
-    ) {}
+    ) {
+    }
 
     public function getItems(array &$config): void
     {
@@ -54,8 +58,9 @@ private function getFormSettings(): array
         if (!isset($formSettings['formManager'])) {
             // Config sub array formManager is crucial and should always exist. If it does
             // not, this indicates an issue in config loading logic. Except in this case.
-            throw new \LogicException('Configuration could not be loaded', 1723717461);
+            throw new LogicException('Configuration could not be loaded', 1723717461);
         }
+
         return $formSettings;
     }
 }
diff --git a/Classes/Hooks/ItemsProcFunc.php b/Classes/Hooks/ItemsProcFunc.php
index 139bbdaa..ac15236c 100644
--- a/Classes/Hooks/ItemsProcFunc.php
+++ b/Classes/Hooks/ItemsProcFunc.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Hooks;
 
 /*
@@ -53,13 +55,13 @@ public function user_templateLayout(array &$config): void
      */
     protected function reduceTemplateLayouts(array $templateLayouts, int $currentColPos): array
     {
-        $currentColPos = (int)$currentColPos;
+        $currentColPos = (int) $currentColPos;
         $restrictions = [];
         $allLayouts = [];
         foreach ($templateLayouts as $key => $layout) {
             if (is_array($layout[0])) {
-                if (isset($layout[0]['allowedColPos']) && \str_ends_with((string)$layout[1], '.')) {
-                    $layoutKey = substr((string)$layout[1], 0, -1);
+                if (isset($layout[0]['allowedColPos']) && \str_ends_with((string) $layout[1], '.')) {
+                    $layoutKey = mb_substr((string) $layout[1], 0, -1);
                     $restrictions[$layoutKey] = GeneralUtility::intExplode(',', $layout[0]['allowedColPos'], true);
                 }
             } else {
@@ -87,6 +89,7 @@ protected function getPageId(int $pid): int
         }
 
         $row = BackendUtilityCore::getRecord('tt_content', abs($pid), 'uid,pid');
+
         return $row['pid'];
     }
 
diff --git a/Classes/PageTitle/PageTitleProvider.php b/Classes/PageTitle/PageTitleProvider.php
index bd10c8ca..93f9d73c 100644
--- a/Classes/PageTitle/PageTitleProvider.php
+++ b/Classes/PageTitle/PageTitleProvider.php
@@ -2,13 +2,6 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\PageTitle;
 
 use TYPO3\CMS\Core\PageTitle\AbstractPageTitleProvider;
diff --git a/Classes/Property/Exception/ResetPropertyException.php b/Classes/Property/Exception/ResetPropertyException.php
index a7da9af1..06c41c5e 100644
--- a/Classes/Property/Exception/ResetPropertyException.php
+++ b/Classes/Property/Exception/ResetPropertyException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Property\Exception;
 
 /*
@@ -11,4 +13,6 @@
 
 use TYPO3\CMS\Extbase\Property\Exception;
 
-class ResetPropertyException extends Exception {}
+class ResetPropertyException extends Exception
+{
+}
diff --git a/Classes/Service/AbstractConfigurationFromTypoScriptService.php b/Classes/Service/AbstractConfigurationFromTypoScriptService.php
deleted file mode 100644
index d3c02bfb..00000000
--- a/Classes/Service/AbstractConfigurationFromTypoScriptService.php
+++ /dev/null
@@ -1,97 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Extcode\Cart\Service;
-
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
-use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Domain\Model\Cart\ServiceFactory;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
-
-abstract class AbstractConfigurationFromTypoScriptService
-{
-    protected array $configurations;
-
-    public function __construct(
-        private readonly ConfigurationManagerInterface $configurationManager,
-        private readonly ServiceFactory $serviceFactory
-    ) {
-        $this->configurations = $this->configurationManager->getConfiguration(
-            ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK,
-            'Cart'
-        );
-    }
-
-    public function getServices(?array $configurations, array $services, Cart $cart): array
-    {
-        if (empty($configurations['options'])) {
-            return $services;
-        }
-
-        foreach ($configurations['options'] as $serviceKey => $serviceConfig) {
-            $service = $this->serviceFactory->getService($serviceKey, $serviceConfig, $configurations['preset'] == $serviceKey);
-            $service->setCart($cart);
-
-            $services[$serviceKey] = $service;
-        }
-
-        return $services;
-    }
-
-    public function getConfigurationsForType(string $configurationType, ?string $country = null): ?array
-    {
-        if (!isset($this->configurations[$configurationType])) {
-            return null;
-        }
-
-        $configuration = $this->configurations[$configurationType];
-
-        if (is_null($country)) {
-            if (isset($configuration['settings']['countries']['options'][$configuration['settings']['countries']['preset']]['code'])) {
-                $country = $configuration['settings']['countries']['options'][$configuration['settings']['countries']['preset']]['code'];
-            }
-        }
-
-        if (isset($country)) {
-            if (
-                !empty($configuration['countries'])
-                && !empty($configuration['countries'][$country])
-                && is_array($configuration['countries'][$country])
-            ) {
-                return $configuration['countries'][$country];
-            }
-
-            if (!empty($configuration['zones']) && is_array($configuration['zones'])) {
-                $zoneSetting = $this->getTypeZonesPluginSettings($configuration['zones'], $country);
-                if (!empty($zoneSetting)) {
-                    return $zoneSetting;
-                }
-            }
-
-            return $configuration;
-        }
-
-        return null;
-    }
-
-    protected function getTypeZonesPluginSettings(array $zoneSettings, string $country): array
-    {
-        foreach ($zoneSettings as $zoneSetting) {
-            $countriesInZones = GeneralUtility::trimExplode(',', $zoneSetting['countries'], true);
-
-            if (in_array($country, $countriesInZones)) {
-                return $zoneSetting;
-            }
-        }
-
-        return [];
-    }
-}
diff --git a/Classes/Service/MailHandler.php b/Classes/Service/MailHandler.php
index 9bd4c96a..ea47d013 100644
--- a/Classes/Service/MailHandler.php
+++ b/Classes/Service/MailHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Service;
 
 /*
@@ -9,9 +11,14 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Exception;
+use Extcode\Cart\Domain\Log\LogServiceInterface;
+use Extcode\Cart\Domain\Log\Model\Log;
 use Extcode\Cart\Domain\Model\Cart\Cart;
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Extcode\Cart\Domain\Model\Order\Item;
 use Extcode\Cart\Event\Mail\AttachmentEvent;
+use InvalidArgumentException;
 use Psr\EventDispatcher\EventDispatcherInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Symfony\Component\Mime\Address;
@@ -28,14 +35,23 @@ class MailHandler implements SingletonInterface
     protected ?Cart $cart = null;
 
     protected string $buyerEmailName = '';
+
     protected string $buyerEmailFrom = '';
+
     protected string $buyerEmailCc = '';
+
     protected string $buyerEmailBcc = '';
+
     protected string $buyerEmailReplyTo = '';
+
     protected string $sellerEmailName = '';
+
     protected string $sellerEmailFrom = '';
+
     protected string $sellerEmailTo = '';
+
     protected string $sellerEmailCc = '';
+
     protected string $sellerEmailBcc = '';
 
     /**
@@ -44,7 +60,8 @@ class MailHandler implements SingletonInterface
     public function __construct(
         private readonly ConfigurationManagerInterface $configurationManager,
         private readonly EventDispatcherInterface $eventDispatcher,
-        private readonly MailerInterface $mailer
+        private readonly MailerInterface $mailer,
+        private readonly LogServiceInterface $logService,
     ) {
         $this->setPluginSettings();
     }
@@ -292,7 +309,10 @@ public function getSellerEmailBcc(): string
      */
     public function sendBuyerMail(Item $orderItem): void
     {
-        if (empty($this->getBuyerEmailFrom()) || empty($orderItem->getBillingAddress()->getEmail())) {
+        if (empty($this->getBuyerEmailFrom())
+                || ($orderItem->getBillingAddress() instanceof AddressInterface) === false
+            || empty($orderItem->getBillingAddress()->getEmail())
+        ) {
             return;
         }
 
@@ -306,9 +326,10 @@ public function sendBuyerMail(Item $orderItem): void
             ->from($fromAddress)
             ->setTemplate('Mail/' . ucfirst($status) . '/Buyer')
             ->format(FluidEmail::FORMAT_HTML)
-            ->assign('settings', $this->pluginSettings['settings'])
+            ->assign('settings', $this->pluginSettings['settings'] ?? [])
             ->assign('cart', $this->cart)
-            ->assign('orderItem', $orderItem);
+            ->assign('orderItem', $orderItem)
+        ;
 
         if ($this->getBuyerEmailCc()) {
             $cc = explode(',', $this->getBuyerEmailCc());
@@ -324,11 +345,35 @@ public function sendBuyerMail(Item $orderItem): void
 
         $this->addAttachments('buyer', $orderItem, $email);
 
-        if ($GLOBALS['TYPO3_REQUEST'] instanceof ServerRequestInterface) {
+        if (($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface) {
             $email->setRequest($GLOBALS['TYPO3_REQUEST']);
         }
 
-        $this->mailer->send($email);
+        try {
+            $this->mailer->send($email);
+            $this->logService->write(
+                Log::info(
+                    self::getOrderItemUid($orderItem),
+                    'sendBuyerMail',
+                    'Mail was send to buyer.',
+                    [
+                        'time' => time(),
+                    ]
+                )
+            );
+        } catch (Exception $e) {
+            $this->logService->write(
+                Log::error(
+                    self::getOrderItemUid($orderItem),
+                    'sendBuyerMail',
+                    'Mail could not send to buyer.',
+                    [
+                        'time' => time(),
+                        'exception' => $e->__toString(),
+                    ]
+                )
+            );
+        }
     }
 
     /**
@@ -336,6 +381,9 @@ public function sendBuyerMail(Item $orderItem): void
      */
     public function sendSellerMail(Item $orderItem): void
     {
+        if (is_null($orderItem->getUid())) {
+            throw new InvalidArgumentException('Method should only called for persisted orders.', 1774715307);
+        }
         $sellerEmailTo = $this->getSellerEmailTo();
         if (empty($this->getSellerEmailFrom()) || empty($sellerEmailTo)) {
             return;
@@ -352,11 +400,14 @@ public function sendSellerMail(Item $orderItem): void
             ->from($fromAddress)
             ->setTemplate('Mail/' . ucfirst($status) . '/Seller')
             ->format(FluidEmail::FORMAT_HTML)
-            ->assign('settings', $this->pluginSettings['settings'])
+            ->assign('settings', $this->pluginSettings['settings'] ?? [])
             ->assign('cart', $this->cart)
-            ->assign('orderItem', $orderItem);
+            ->assign('orderItem', $orderItem)
+        ;
 
-        if ($orderItem->getBillingAddress()->getEmail()) {
+        if (($orderItem->getBillingAddress() instanceof AddressInterface)
+                && $orderItem->getBillingAddress()->getEmail()
+        ) {
             $email->replyTo($orderItem->getBillingAddress()->getEmail());
         }
         if ($this->getSellerEmailCc()) {
@@ -370,11 +421,35 @@ public function sendSellerMail(Item $orderItem): void
 
         $this->addAttachments('seller', $orderItem, $email);
 
-        if ($GLOBALS['TYPO3_REQUEST'] instanceof ServerRequestInterface) {
+        if (($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface) {
             $email->setRequest($GLOBALS['TYPO3_REQUEST']);
         }
 
-        $this->mailer->send($email);
+        try {
+            $this->mailer->send($email);
+            $this->logService->write(
+                Log::info(
+                    self::getOrderItemUid($orderItem),
+                    'sendSellerMail',
+                    'Mail was send to seller.',
+                    [
+                        'time' => time(),
+                    ]
+                )
+            );
+        } catch (Exception $e) {
+            $this->logService->write(
+                Log::error(
+                    self::getOrderItemUid($orderItem),
+                    'sendSellerMail',
+                    'Mail could not send to seller.',
+                    [
+                        'time' => time(),
+                        'exception' => $e->__toString(),
+                    ]
+                )
+            );
+        }
     }
 
     public function addAttachments(string $type, Item $orderItem, FluidEmail $email): void
@@ -388,8 +463,30 @@ public function addAttachments(string $type, Item $orderItem, FluidEmail $email)
             foreach ($attachments as $attachment) {
                 if (file_exists($attachment)) {
                     $email->attachFromPath($attachment);
+                } else {
+                    $this->logService->write(
+                        Log::warning(
+                            self::getOrderItemUid($orderItem),
+                            'addAttachments',
+                            'Mail could add attachment ' . $attachment . ' to mail.',
+                            [
+                                'time' => time(),
+                            ]
+                        )
+                    );
                 }
             }
         }
     }
+
+    private static function getOrderItemUid(Item $orderItem): int
+    {
+        $orderItemUid = $orderItem->getUid();
+
+        if (is_null($orderItemUid)) {
+            throw new InvalidArgumentException('Method should only called for persisted orders.', 1774715307);
+        }
+
+        return $orderItemUid;
+    }
 }
diff --git a/Classes/Service/OrderItemCleanupService.php b/Classes/Service/OrderItemCleanupService.php
index e6e95059..7c1cb102 100644
--- a/Classes/Service/OrderItemCleanupService.php
+++ b/Classes/Service/OrderItemCleanupService.php
@@ -14,21 +14,22 @@
 use DateTimeImmutable;
 use Extcode\Cart\Utility\Typo3GlobalsUtility;
 use RuntimeException;
+use TYPO3\CMS\Core\DataHandling\DataHandler;
 use TYPO3\CMS\Core\Database\Connection;
 use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
-use TYPO3\CMS\Core\DataHandling\DataHandler;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 final readonly class OrderItemCleanupService
 {
     public function __construct(
         private ConnectionPool $connectionPool,
-    ) {}
+    ) {
+    }
 
     public function run(DateTimeImmutable $cutOffDate): void
     {
-        $this->deleteRecordsFromTable(
+        self::deleteRecordsFromTable(
             'tx_cart_domain_model_order_item',
             $this->getRecordUidsToDelete(
                 'tx_cart_domain_model_order_item',
@@ -43,7 +44,8 @@ private function getRecordUidsToDelete(string $tableName, DateTimeImmutable $cut
         $queryBuilder
             ->getRestrictions()
             ->removeAll()
-            ->add(GeneralUtility::makeInstance(DeletedRestriction::class));
+            ->add(GeneralUtility::makeInstance(DeletedRestriction::class))
+        ;
 
         return $queryBuilder
             ->select('uid')
@@ -55,10 +57,11 @@ private function getRecordUidsToDelete(string $tableName, DateTimeImmutable $cut
                 ),
             )
             ->executeQuery()
-            ->fetchFirstColumn();
+            ->fetchFirstColumn()
+        ;
     }
 
-    private function deleteRecordsFromTable(string $tableName, array $recordUids): void
+    private static function deleteRecordsFromTable(string $tableName, array $recordUids): void
     {
         $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
         $dataHandler->start(
@@ -74,7 +77,7 @@ private function deleteRecordsFromTable(string $tableName, array $recordUids): v
 
         if ($dataHandler->errorLog !== []) {
             throw new RuntimeException(
-                'Could not properly delete records for table: ' . $tableName . ', got the following errors: ' . implode(', ', $dataHandler->errorLog),
+                'Could not properly delete records for table: ' . $tableName . ', got the following errors: ' . implode(', ', array_filter($dataHandler->errorLog, is_string(...))),
                 1751526777
             );
         }
diff --git a/Classes/Service/SessionHandler.php b/Classes/Service/SessionHandler.php
index 804c7d01..987fce6a 100644
--- a/Classes/Service/SessionHandler.php
+++ b/Classes/Service/SessionHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Service;
 
 /*
@@ -10,7 +12,7 @@
  */
 
 use Extcode\Cart\Domain\Model\Cart\Cart;
-use Extcode\Cart\Domain\Model\Order\AbstractAddress;
+use Extcode\Cart\Domain\Model\Order\AddressInterface;
 use Extcode\Cart\Event\Session\AfterRestoreAddressEvent;
 use Extcode\Cart\Event\Session\AfterRestoreCartEvent;
 use Extcode\Cart\Event\Session\BeforeWriteAddressEvent;
@@ -22,6 +24,7 @@
 class SessionHandler implements SingletonInterface
 {
     protected $prefixKey = 'cart_';
+
     private FrontendUserAuthentication $frontendUserAuthentication;
 
     public function __construct(
@@ -42,6 +45,7 @@ public function restoreCart(string $key): ?Cart
             if ($cart instanceof Cart) {
                 $afterRestoreCartEvent = new AfterRestoreCartEvent($cart);
                 $this->eventDispatcher->dispatch($afterRestoreCartEvent);
+
                 return $cart;
             }
         }
@@ -72,17 +76,18 @@ public function clearCart(string $key): void
     }
 
     /**
-     * restore an AbstractAddress object from session
+     * restore an AddressInterface object from session
      */
-    public function restoreAddress(string $key): ?AbstractAddress
+    public function restoreAddress(string $key): ?AddressInterface
     {
         $sessionData = $this->frontendUserAuthentication->getKey('ses', $this->prefixKey . $key);
 
         if (is_string($sessionData)) {
             $address = unserialize($sessionData);
-            if ($address instanceof AbstractAddress) {
+            if ($address instanceof AddressInterface) {
                 $afterRestoreAddressEvent = new AfterRestoreAddressEvent($address);
                 $this->eventDispatcher->dispatch($afterRestoreAddressEvent);
+
                 return $address;
             }
         }
@@ -91,9 +96,9 @@ public function restoreAddress(string $key): ?AbstractAddress
     }
 
     /**
-     * writes an AbstractAddress object to session
+     * writes an AddressInterface object to session
      */
-    public function writeAddress(string $key, AbstractAddress $address): void
+    public function writeAddress(string $key, AddressInterface $address): void
     {
         $beforeWriteAddressEvent = new BeforeWriteAddressEvent($address);
         $this->eventDispatcher->dispatch($beforeWriteAddressEvent);
diff --git a/Classes/Updates/ExtcodeCartCTypeMigration.php b/Classes/Updates/ExtcodeCartCTypeMigration.php
new file mode 100644
index 00000000..e43fa680
--- /dev/null
+++ b/Classes/Updates/ExtcodeCartCTypeMigration.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Updates;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use TYPO3\CMS\Core\Attribute\UpgradeWizard;
+use TYPO3\CMS\Core\Upgrades\AbstractListTypeToCTypeUpdate;
+
+#[UpgradeWizard('extcodeCartCTypeMigration')]
+final class ExtcodeCartCTypeMigration extends AbstractListTypeToCTypeUpdate
+{
+    public function getTitle(): string
+    {
+        return 'Migrate "Extcode Cart" plugins to content elements.';
+    }
+
+    public function getDescription(): string
+    {
+        return 'The "Extcode Cart" plugins are now registered as content element. Update migrates existing records and backend user permissions.';
+    }
+
+    protected function getListTypeToCTypeMapping(): array
+    {
+        return [
+            'cart' => 'cart_cart',
+        ];
+    }
+}
diff --git a/Classes/Updates/ListTypeToCTypeUpdate.php b/Classes/Updates/ListTypeToCTypeUpdate.php
index 2f046f3a..e65e9055 100644
--- a/Classes/Updates/ListTypeToCTypeUpdate.php
+++ b/Classes/Updates/ListTypeToCTypeUpdate.php
@@ -1,9 +1,8 @@
 <?php
 
-namespace Extcode\Cart\Updates;
+declare(strict_types=1);
 
-use TYPO3\CMS\Install\Attribute\UpgradeWizard;
-use TYPO3\CMS\Install\Updates\AbstractListTypeToCTypeUpdate;
+namespace Extcode\Cart\Updates;
 
 /*
  * This file is part of the package extcode/cart.
@@ -12,19 +11,12 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use TYPO3\CMS\Core\Attribute\UpgradeWizard;
+use TYPO3\CMS\Core\Upgrades\AbstractListTypeToCTypeUpdate;
+
 #[UpgradeWizard('cart_updateListTypeToCType')]
 class ListTypeToCTypeUpdate extends AbstractListTypeToCTypeUpdate
 {
-    protected function getListTypeToCTypeMapping(): array
-    {
-        return [
-            'cart_cart' => 'cart_cart',
-            'cart_currency' => 'cart_currency',
-            'cart_minicart' => 'cart_minicart',
-            'cart_order' => 'cart_order',
-        ];
-    }
-
     public function getTitle(): string
     {
         return 'Update cart list_type to CType.';
@@ -34,4 +26,14 @@ public function getDescription(): string
     {
         return 'Update all cart list_type plugin to CType.';
     }
+
+    protected function getListTypeToCTypeMapping(): array
+    {
+        return [
+            'cart_cart' => 'cart_cart',
+            'cart_currency' => 'cart_currency',
+            'cart_minicart' => 'cart_minicart',
+            'cart_order' => 'cart_order',
+        ];
+    }
 }
diff --git a/Classes/Utility/CartUtility.php b/Classes/Utility/CartUtility.php
index a9881f6e..f260be8f 100644
--- a/Classes/Utility/CartUtility.php
+++ b/Classes/Utility/CartUtility.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Utility;
 
 /*
@@ -9,25 +11,27 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\ShippingMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\TaxClassLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Event\Cart\UpdateCountryEvent;
-use Extcode\Cart\Service\PaymentMethodsServiceInterface;
 use Extcode\Cart\Service\SessionHandler;
-use Extcode\Cart\Service\ShippingMethodsServiceInterface;
-use Extcode\Cart\Service\TaxClassServiceInterface;
+use InvalidArgumentException;
 use Psr\EventDispatcher\EventDispatcherInterface;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 class CartUtility
 {
     public function __construct(
         protected EventDispatcherInterface $eventDispatcher,
-        protected PaymentMethodsServiceInterface $paymentMethodsService,
-        protected ShippingMethodsServiceInterface $shippingMethodsService,
-        protected TaxClassServiceInterface $taxClassService,
+        protected PaymentMethodsLoaderInterface $paymentMethodsLoader,
+        protected ShippingMethodsLoaderInterface $shippingMethodsLoader,
+        protected TaxClassLoaderInterface $taxClassLoader,
         protected SessionHandler $sessionHandler
-    ) {}
+    ) {
+    }
 
     public function getServiceById(array $services, int $serviceId): mixed
     {
@@ -40,11 +44,17 @@ public function getServiceById(array $services, int $serviceId): mixed
         return false;
     }
 
-    public function updateCountry(array $cartSettings, array $pluginSettings, Request $request): void
-    {
+    public function updateCountry(
+        array $cartSettings,
+        array $pluginSettings,
+        RequestInterface $request
+    ): void {
         $cart = $this->sessionHandler->restoreCart($cartSettings['pid']);
 
-        $event = new UpdateCountryEvent($cart, $request);
+        $event = new UpdateCountryEvent(
+            $cart,
+            $request
+        );
         $this->eventDispatcher->dispatch($event);
 
         $this->sessionHandler->writeCart($cartSettings['pid'], $event->getCart());
@@ -54,7 +64,7 @@ public function updateService(Cart $cart): void
     {
         $cart->getPayment()->setCart($cart);
         if (!$cart->getPayment()->isAvailable()) {
-            $payments = $this->paymentMethodsService->getPaymentMethods($cart);
+            $payments = $this->paymentMethodsLoader->getPaymentMethods($cart);
             $fallBackId = $cart->getPayment()->getFallBackId();
             if ($fallBackId) {
                 $payment = $this->getServiceById($payments, $fallBackId);
@@ -64,7 +74,7 @@ public function updateService(Cart $cart): void
 
         $cart->getShipping()->setCart($cart);
         if (!$cart->getShipping()->isAvailable()) {
-            $shippings = $this->shippingMethodsService->getShippingMethods($cart);
+            $shippings = $this->shippingMethodsLoader->getShippingMethods($cart);
             $fallBackId = $cart->getShipping()->getFallBackId();
             if ($fallBackId) {
                 $shipping = $this->getServiceById($shippings, $fallBackId);
@@ -79,7 +89,7 @@ public function updateService(Cart $cart): void
     public function getNewCart(array $configurations): Cart
     {
         $isNetCartTypoScriptInput = $configurations['settings']['cart']['isNetCart'];
-        $isNetCart = ($isNetCartTypoScriptInput === '1' || $isNetCartTypoScriptInput === 'true');
+        $isNetCart = $isNetCartTypoScriptInput === '1' || $isNetCartTypoScriptInput === 'true';
 
         $preset = $configurations['settings']['currencies']['preset'];
         if ($configurations['settings']['currencies']['options'][$preset]) {
@@ -87,7 +97,7 @@ public function getNewCart(array $configurations): Cart
         }
 
         if (!isset($currency) || !is_array($currency) || !isset($currency['code']) || !isset($currency['sign']) || !isset($currency['translation'])) {
-            throw new \InvalidArgumentException('Add propper currency TypoScript configuration.');
+            throw new InvalidArgumentException('Add propper currency TypoScript configuration.', 5910386141);
         }
 
         // TODO: Throw exception if no currency setting is available or make an default because creating a new cart need
@@ -95,7 +105,7 @@ public function getNewCart(array $configurations): Cart
 
         $defaultCountry  = $configurations['settings']['countries']['options'][$configurations['settings']['countries']['preset']]['code'];
 
-        $taxClasses = $this->taxClassService->getTaxClasses($defaultCountry);
+        $taxClasses = $this->taxClassLoader->getTaxClasses($defaultCountry);
 
         $cart = GeneralUtility::makeInstance(
             Cart::class,
@@ -103,7 +113,7 @@ public function getNewCart(array $configurations): Cart
             $isNetCart,
             $currency['code'],
             $currency['sign'],
-            (float)$currency['translation']
+            (float) $currency['translation']
         );
 
         if ($defaultCountry) {
@@ -120,7 +130,7 @@ public function getNewCart(array $configurations): Cart
 
     protected function setShipping(Cart $cart): void
     {
-        $shippings = $this->shippingMethodsService->getShippingMethods($cart);
+        $shippings = $this->shippingMethodsLoader->getShippingMethods($cart);
 
         foreach ($shippings as $shipping) {
             if ($shipping->isPreset()) {
@@ -136,7 +146,7 @@ protected function setShipping(Cart $cart): void
 
     protected function setPayment(Cart $cart): void
     {
-        $payments = $this->paymentMethodsService->getPaymentMethods($cart);
+        $payments = $this->paymentMethodsLoader->getPaymentMethods($cart);
 
         foreach ($payments as $payment) {
             if ($payment->isPreset()) {
diff --git a/Classes/Utility/CurrencyUtility.php b/Classes/Utility/CurrencyUtility.php
index a92b9f10..c40c4fad 100644
--- a/Classes/Utility/CurrencyUtility.php
+++ b/Classes/Utility/CurrencyUtility.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Utility;
 
 /*
@@ -12,20 +14,28 @@
 use Extcode\Cart\Event\Cart\UpdateCurrencyEvent;
 use Extcode\Cart\Service\SessionHandler;
 use Psr\EventDispatcher\EventDispatcherInterface;
-use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
 
 class CurrencyUtility
 {
     public function __construct(
         protected EventDispatcherInterface $eventDispatcher,
         protected SessionHandler $sessionHandler
-    ) {}
+    ) {
+    }
 
-    public function updateCurrency(array $cartSettings, array $pluginSettings, Request $request): void
-    {
+    public function updateCurrency(
+        array $cartSettings,
+        array $pluginSettings,
+        RequestInterface $request
+    ): void {
         $cart = $this->sessionHandler->restoreCart($cartSettings['pid']);
 
-        $event = new UpdateCurrencyEvent($cart, $request, $pluginSettings['settings']['currencies']);
+        $event = new UpdateCurrencyEvent(
+            $cart,
+            $request,
+            $pluginSettings['settings']['currencies']
+        );
         $this->eventDispatcher->dispatch($event);
 
         $this->sessionHandler->writeCart($cartSettings['pid'], $event->getCart());
diff --git a/Classes/Utility/EvalPrice.php b/Classes/Utility/EvalPrice.php
index ea7e9015..ad0718a1 100644
--- a/Classes/Utility/EvalPrice.php
+++ b/Classes/Utility/EvalPrice.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Utility;
 
 /*
@@ -13,12 +15,10 @@ class EvalPrice
 {
     /**
      * Returns Field JS
-     *
-     * @return string
      */
-    public function returnFieldJs()
+    public function returnFieldJs(): string
     {
-        $js = '
+        return '
             var re = new RegExp("^[0-9]{1,}[.,]{0,1}[0-9]{0,2}$");
 
             if(value == "" || !value.match(re)) {
@@ -27,24 +27,16 @@ public function returnFieldJs()
             }
 
             return value;';
-
-        return $js;
     }
 
     /**
      * Evaluate Field Value
-     *
-     * @param $value
-     * @param $is_in
-     * @param $set
-     *
-     * @return string
      */
-    public function evaluateFieldValue($value, $is_in, &$set)
+    public function evaluateFieldValue($value, $is_in, &$set): string
     {
         if ($value == ''
             || $value == 'please enter a price'
-            || !preg_match('/^[0-9]{1,}[.,]{0,1}[0-9]{0,2}$/', (string)$value)
+            || !preg_match('/^[0-9]{1,}[.,]{0,1}[0-9]{0,2}$/', (string) $value)
         ) {
             return 'please enter a price';
         }
diff --git a/Classes/Utility/TemplateLayout.php b/Classes/Utility/TemplateLayout.php
index 5a534282..4ab00bf3 100644
--- a/Classes/Utility/TemplateLayout.php
+++ b/Classes/Utility/TemplateLayout.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Utility;
 
 /*
@@ -39,7 +41,7 @@ public function getAvailableTemplateLayouts(int $pageUid, string $extKey, string
 
         // Add TsConfig values
         foreach ($this->getTemplateLayoutsFromTsConfig($pageUid, $extKey, $pluginName) as $templateKey => $title) {
-            if (\str_starts_with((string)$title, '--div--')) {
+            if (\str_starts_with((string) $title, '--div--')) {
                 $optGroupParts = GeneralUtility::trimExplode(',', $title, true, 2);
                 $title = $optGroupParts[1];
                 $templateKey = $optGroupParts[0];
@@ -61,8 +63,7 @@ protected function getTemplateLayoutsFromTsConfig(int $pageUid, string $extKey,
 
         if (!empty($pluginName)) {
             $pluginName .= '.';
-            if (isset($pagesTsConfig[$extKey]['templateLayouts.'])
-                && isset($pagesTsConfig[$extKey]['templateLayouts.'][$pluginName])
+            if (isset($pagesTsConfig[$extKey]['templateLayouts.'], $pagesTsConfig[$extKey]['templateLayouts.'][$pluginName])
                 && is_array($pagesTsConfig[$extKey]['templateLayouts.'][$pluginName])
             ) {
                 $templateLayouts = $pagesTsConfig[$extKey]['templateLayouts.'][$pluginName];
@@ -74,6 +75,7 @@ protected function getTemplateLayoutsFromTsConfig(int $pageUid, string $extKey,
                 $templateLayouts = $pagesTsConfig[$extKey]['templateLayouts.'];
             }
         }
+
         return $templateLayouts;
     }
 }
diff --git a/Classes/Utility/Typo3GlobalsUtility.php b/Classes/Utility/Typo3GlobalsUtility.php
index 251966d3..a6cd0da8 100644
--- a/Classes/Utility/Typo3GlobalsUtility.php
+++ b/Classes/Utility/Typo3GlobalsUtility.php
@@ -11,8 +11,10 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TypeError;
+use Psr\Http\Message\ServerRequestInterface;
 use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\Site\Entity\Site;
+use TypeError;
 
 final readonly class Typo3GlobalsUtility
 {
@@ -20,10 +22,34 @@ public static function getTypo3BackendUser(): BackendUserAuthentication
     {
         $user = $GLOBALS['BE_USER'] ?? null;
 
-        if (!$user instanceof BackendUserAuthentication) {
-            throw new TypeError('Globals BE_USER was not of type BackendUserAuthentication, got: ' . $user, 1769004660);
+        if (($user instanceof BackendUserAuthentication) === false) {
+            throw new TypeError('$GLOBALS[\'BE_USER\'] was not of type BackendUserAuthentication, got: ' . $user, 1769004660);
         }
 
         return $user;
     }
+
+    public static function getTypo3Request(): ServerRequestInterface
+    {
+        $request = $GLOBALS['TYPO3_REQUEST'] ?? null;
+
+        if (($request instanceof ServerRequestInterface) === false) {
+            throw new TypeError('$GLOBALS[\'TYPO3_REQUEST\'] was not of type ServerRequestInterface, got: ' . $request, 1776420280);
+        }
+
+        return $request;
+    }
+
+    public static function getSiteFromTypo3Request(): Site
+    {
+        $request = self::getTypo3Request();
+
+        $site = $request->getAttribute('site');
+
+        if (($site instanceof Site) === false) {
+            throw new TypeError('$site was not of type Site, got: ' . $site, 1776450259);
+        }
+
+        return $site;
+    }
 }
diff --git a/Classes/Validation/Validator/EmptyValidator.php b/Classes/Validation/Validator/EmptyValidator.php
index 3f992295..e246e4c9 100644
--- a/Classes/Validation/Validator/EmptyValidator.php
+++ b/Classes/Validation/Validator/EmptyValidator.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Validation\Validator;
 
 /*
@@ -9,6 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Countable;
 use TYPO3\CMS\Extbase\Validation\Validator\AbstractValidator;
 
 class EmptyValidator extends AbstractValidator
@@ -19,14 +22,14 @@ class EmptyValidator extends AbstractValidator
      *
      * @var bool
      */
-    protected $acceptsEmptyValues = false;
+    protected $acceptsEmptyValues = true;
 
     /**
      * Checks if the given property ($propertyValue) is not empty (NULL, empty string, empty array or empty object).
      *
      * @param mixed $value The value that should be validated
      */
-    public function isValid(mixed $value): void
+    protected function isValid(mixed $value): void
     {
         if ($value != null) {
             if (is_numeric($value)) {
@@ -39,7 +42,7 @@ public function isValid(mixed $value): void
                 );
             } elseif (
                 is_string($value)
-                && $value != ''
+                && !empty($value)
             ) {
                 $this->addError(
                     $this->translateErrorMessage(
@@ -59,7 +62,11 @@ public function isValid(mixed $value): void
                     ),
                     1500493650
                 );
-            } elseif (is_object($value) && $value instanceof \Countable && $value->count() != 0) {
+            } elseif (
+                is_object($value)
+                && $value instanceof Countable
+                && $value->count() != 0
+            ) {
                 $this->addError(
                     $this->translateErrorMessage(
                         'validator.empty.notempty',
@@ -71,3 +78,6 @@ public function isValid(mixed $value): void
         }
     }
 }
+
+// keep compatibility for $acceptsEmptyValues property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/AdditionalJsonViewHelper.php b/Classes/ViewHelpers/AdditionalJsonViewHelper.php
index 973ab9b2..de1b3500 100644
--- a/Classes/ViewHelpers/AdditionalJsonViewHelper.php
+++ b/Classes/ViewHelpers/AdditionalJsonViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -39,9 +41,6 @@ public function initializeArguments(): void
         );
     }
 
-    /**
-     * @return string
-     */
     public function render(): string
     {
         $content = '';
@@ -75,3 +74,6 @@ protected function getValue(array $data, string $key): string
         return $data[$key] ?? '';
     }
 }
+
+// keep compatibility for $escapeOutput property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/CsvHeaderViewHelper.php b/Classes/ViewHelpers/CsvHeaderViewHelper.php
index 5b23b542..6a807bea 100644
--- a/Classes/ViewHelpers/CsvHeaderViewHelper.php
+++ b/Classes/ViewHelpers/CsvHeaderViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -43,10 +45,8 @@ public function initializeArguments(): void
 
     /**
      * Format OrderItem to CSV format
-     *
-     * @return string
      */
-    public function render()
+    public function render(): string
     {
         $delim = $this->arguments['delim'];
         $quote = $this->arguments['quote'];
@@ -66,3 +66,6 @@ public function render()
         return CsvUtility::csvValues($orderItemArr, $delim, $quote);
     }
 }
+
+// keep compatibility for $escapeOutput property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/CsvValuesViewHelper.php b/Classes/ViewHelpers/CsvValuesViewHelper.php
index 7488debb..3e20e61e 100644
--- a/Classes/ViewHelpers/CsvValuesViewHelper.php
+++ b/Classes/ViewHelpers/CsvValuesViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -50,10 +52,8 @@ public function initializeArguments(): void
 
     /**
      * Format OrderItem to CSV format
-     *
-     * @return string
      */
-    public function render()
+    public function render(): string
     {
         $orderItem = $this->arguments['orderItem'];
         $delim = $this->arguments['delim'];
@@ -74,3 +74,6 @@ public function render()
         return CsvUtility::csvValues($orderItemArr, $delim, $quote);
     }
 }
+
+// keep compatibility for $escapeOutput property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/FieldNameViewHelper.php b/Classes/ViewHelpers/FieldNameViewHelper.php
index b4593272..8280f3f4 100644
--- a/Classes/ViewHelpers/FieldNameViewHelper.php
+++ b/Classes/ViewHelpers/FieldNameViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
diff --git a/Classes/ViewHelpers/Form/IsServiceAvailableAtPriceViewHelper.php b/Classes/ViewHelpers/Form/IsServiceAvailableAtPriceViewHelper.php
index 9dab71d4..9c80e503 100644
--- a/Classes/ViewHelpers/Form/IsServiceAvailableAtPriceViewHelper.php
+++ b/Classes/ViewHelpers/Form/IsServiceAvailableAtPriceViewHelper.php
@@ -1,8 +1,10 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Form;
 
-/**
+/*
  * This file is part of the TYPO3 CMS project.
  *
  * It is free software; you can redistribute it and/or modify it under
@@ -14,8 +16,8 @@
  *
  * The TYPO3 project - inspiring people to share!
  */
-
 use Extcode\Cart\Domain\Model\Cart\ServiceInterface;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractConditionViewHelper;
 
 /**
@@ -26,6 +28,7 @@ class IsServiceAvailableAtPriceViewHelper extends AbstractConditionViewHelper
     public function initializeArguments(): void
     {
         parent::initializeArguments();
+
         $this->registerArgument(
             'service',
             ServiceInterface::class,
@@ -38,15 +41,11 @@ public function initializeArguments(): void
         );
     }
 
-    /**
-     * @param array|null $arguments
-     * @return bool
-     * @api
-     */
-    protected static function evaluateCondition($arguments = null)
+    public static function verdict(array $arguments, RenderingContextInterface $renderingContext): bool
     {
         $service = $arguments['service'];
         $price = $arguments['price'];
-        return (bool)$service->isAvailable($price);
+
+        return (bool) $service->isAvailable($price);
     }
 }
diff --git a/Classes/ViewHelpers/Format/CurrencyViewHelper.php b/Classes/ViewHelpers/Format/CurrencyViewHelper.php
index 2f33f79f..a16382a1 100644
--- a/Classes/ViewHelpers/Format/CurrencyViewHelper.php
+++ b/Classes/ViewHelpers/Format/CurrencyViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Format;
 
 /*
@@ -13,10 +15,6 @@
 
 class CurrencyViewHelper extends AbstractViewHelper
 {
-    public function __construct(
-        protected readonly ConfigurationManager $configurationManager
-    ) {}
-
     /**
      * Output is escaped already. We must not escape children, to avoid double encoding.
      *
@@ -24,6 +22,11 @@ public function __construct(
      */
     protected $escapeOutput = false;
 
+    public function __construct(
+        protected readonly ConfigurationManager $configurationManager
+    ) {
+    }
+
     public function initializeArguments(): void
     {
         parent::initializeArguments();
@@ -126,7 +129,7 @@ public function render(): string
             }
             if (!isset($decimals)) {
                 if (isset($currencyFormat['decimals'])) {
-                    $decimals = (int)($currencyFormat['decimals']);
+                    $decimals = (int) ($currencyFormat['decimals']);
                 } else {
                     $decimals = 0;
                 }
@@ -141,11 +144,11 @@ public function render(): string
         if (empty($floatToFormat)) {
             $floatToFormat = 0.0;
         } else {
-            $floatToFormat = (float)$floatToFormat;
+            $floatToFormat = (float) $floatToFormat;
         }
 
         if (isset($currencyTranslation) && $currencyTranslation > 0.0) {
-            $floatToFormat = $floatToFormat / $currencyTranslation;
+            $floatToFormat /= $currencyTranslation;
         }
 
         $output = number_format($floatToFormat, $decimals, $decimalSeparator, $thousandsSeparator);
@@ -157,6 +160,10 @@ public function render(): string
                 $output = $output . $currencySeparator . $currencySign;
             }
         }
+
         return $output;
     }
 }
+
+// keep compatibility for $escapeOutput property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/Format/NothingViewHelper.php b/Classes/ViewHelpers/Format/NothingViewHelper.php
index 9db9ccb9..1f8962f5 100644
--- a/Classes/ViewHelpers/Format/NothingViewHelper.php
+++ b/Classes/ViewHelpers/Format/NothingViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Format;
 
 /*
@@ -25,3 +27,6 @@ public function render(): void
         $this->renderChildren();
     }
 }
+
+// keep compatibility for $escapeOutput property definition of parent class
+// @php-cs-fixer-ignore phpdoc_to_property_type
diff --git a/Classes/ViewHelpers/IncludeFileViewHelper.php b/Classes/ViewHelpers/IncludeFileViewHelper.php
index 3b83421f..e134aa05 100644
--- a/Classes/ViewHelpers/IncludeFileViewHelper.php
+++ b/Classes/ViewHelpers/IncludeFileViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -8,6 +10,8 @@
  * For the full copyright and license information, please read the
  * LICENSE file that was distributed with this source code.
  */
+
+use Psr\Log\LogLevel;
 use TYPO3\CMS\Core\Http\ApplicationType;
 use TYPO3\CMS\Core\Page\PageRenderer;
 use TYPO3\CMS\Core\Resource\Exception\FileDoesNotExistException;
@@ -15,12 +19,18 @@
 use TYPO3\CMS\Core\Resource\Exception\InvalidFileNameException;
 use TYPO3\CMS\Core\Resource\Exception\InvalidPathException;
 use TYPO3\CMS\Core\TimeTracker\TimeTracker;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Frontend\Resource\FilePathSanitizer;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
 class IncludeFileViewHelper extends AbstractViewHelper
 {
+    public function __construct(
+        private readonly PageRenderer $pageRenderer,
+        private readonly TimeTracker $timeTracker,
+        private readonly FilePathSanitizer $filePathSanitizer,
+    ) {
+    }
+
     public function initializeArguments(): void
     {
         parent::initializeArguments();
@@ -48,23 +58,23 @@ public function render(): void
         $path = $this->arguments['path'];
         $compress = $this->arguments['compress'];
 
-        $pageRenderer = GeneralUtility::makeInstance(PageRenderer::class);
+        $pageRenderer = $this->pageRenderer;
         if (ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isFrontend()) {
             try {
-                $path = GeneralUtility::makeInstance(FilePathSanitizer::class)->sanitize((string)$path);
+                $path = $this->filePathSanitizer->sanitize((string) $path);
             } catch (InvalidFileNameException) {
                 $path = null;
-            } catch (InvalidPathException|FileDoesNotExistException|InvalidFileException $e) {
+            } catch (FileDoesNotExistException|InvalidFileException|InvalidPathException $e) {
                 $path = null;
                 if ($GLOBALS['TSFE']->tmpl->tt_track) {
-                    GeneralUtility::makeInstance(TimeTracker::class)->setTSlogMessage($e->getMessage(), 3);
+                    $this->timeTracker->setTSlogMessage($e->getMessage(), LogLevel::ERROR);
                 }
             }
         }
 
-        if (strtolower(substr((string)$path, -3)) === '.js') {
+        if (mb_strtolower(mb_substr((string) $path, -3)) === '.js') {
             $pageRenderer->addJsFile($path, null, $compress);
-        } elseif (strtolower(substr((string)$path, -4)) === '.css') {
+        } elseif (mb_strtolower(mb_substr((string) $path, -4)) === '.css') {
             $pageRenderer->addCssFile($path, 'stylesheet', 'all', '', $compress);
         }
     }
diff --git a/Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php b/Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
index 744a5877..5ab6b9ec 100644
--- a/Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
+++ b/Classes/ViewHelpers/MapModelPropertiesToTableColumnsViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -67,20 +69,24 @@ public function render(): array
             $mapping = [];
             foreach ($this->configuration['persistence']['classes'][$class]['mapping']['columns'] as $tableColumn => $modelPropertyData) {
                 $modelProperty = $modelPropertyData['mapOnProperty'];
+                if (is_string($modelProperty) === false) {
+                    continue;
+                }
                 $mapping[$modelProperty] = $tableColumn;
             }
 
             $data = ObjectAccess::getGettableProperties($data);
 
             foreach ($data as $key => $value) {
-                if (isset($mapping[$key])) {
+                if (isset($mapping[$key]) && is_string($mapping[$key])) {
                     unset($data[$key]);
-                    $data[$mapping[$key]] = $value;
+                    $data[(string) $mapping[$key]] = $value;
                 }
             }
 
             return $data;
         }
+
         return $data;
     }
 }
diff --git a/Classes/ViewHelpers/MetaTagViewHelper.php b/Classes/ViewHelpers/MetaTagViewHelper.php
index 01c91e6e..fb3d4588 100644
--- a/Classes/ViewHelpers/MetaTagViewHelper.php
+++ b/Classes/ViewHelpers/MetaTagViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers;
 
 /*
@@ -10,7 +12,6 @@
  */
 
 use TYPO3\CMS\Core\MetaTag\MetaTagManagerRegistry;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
 /**
@@ -28,6 +29,11 @@ class MetaTagViewHelper extends AbstractViewHelper
 {
     protected string $tagName = 'meta';
 
+    public function __construct(
+        private readonly MetaTagManagerRegistry $metaTagManagerRegistry
+    ) {
+    }
+
     public function initializeArguments(): void
     {
         $this->registerArgument(
@@ -46,8 +52,9 @@ public function initializeArguments(): void
 
     public function render(): void
     {
-        $metaTagManager = GeneralUtility::makeInstance(MetaTagManagerRegistry::class)
-            ->getManagerForProperty($this->arguments['property']);
+        $metaTagManager = $this->metaTagManagerRegistry
+            ->getManagerForProperty($this->arguments['property'])
+        ;
         $metaTagManager->addProperty(
             $this->arguments['property'],
             $this->arguments['content']
diff --git a/Classes/ViewHelpers/TitleTagViewHelper.php b/Classes/ViewHelpers/TitleTagViewHelper.php
index a4f56815..b882fe81 100644
--- a/Classes/ViewHelpers/TitleTagViewHelper.php
+++ b/Classes/ViewHelpers/TitleTagViewHelper.php
@@ -2,42 +2,37 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\ViewHelpers;
 
 use Extcode\Cart\PageTitle\PageTitleProvider;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
-use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
 
 /**
  * ViewHelper to render the page title
  */
 class TitleTagViewHelper extends AbstractViewHelper
 {
-    use CompileWithRenderStatic;
+    public function __construct(
+        private readonly PageTitleProvider $pageTitleProvider,
+    ) {
+    }
 
     public function initializeArguments(): void
     {
         parent::initializeArguments();
-        $this->registerArgument('pageTitle', 'String', 'The page title');
+
+        $this->registerArgument(
+            'pageTitle',
+            'string',
+            'The page title'
+        );
     }
 
-    public static function renderStatic(
-        array $arguments,
-        \Closure $renderChildrenClosure,
-        RenderingContextInterface $renderingContext
-    ): void {
+    public function render(): void
+    {
         $pageTitle = $arguments['pageTitle'] ?? '';
         if ($pageTitle !== '') {
-            GeneralUtility::makeInstance(PageTitleProvider::class)->setTitle($pageTitle);
+            $this->pageTitleProvider->setTitle($pageTitle);
         }
     }
 }
diff --git a/Classes/ViewHelpers/Traversable/ExtractViewHelper.php b/Classes/ViewHelpers/Traversable/ExtractViewHelper.php
index e75daa7b..bc8baf7d 100644
--- a/Classes/ViewHelpers/Traversable/ExtractViewHelper.php
+++ b/Classes/ViewHelpers/Traversable/ExtractViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Traversable;
 
 /*
@@ -9,7 +11,9 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Exception;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use Traversable;
 
 class ExtractViewHelper extends AbstractViewHelper
 {
@@ -25,7 +29,7 @@ public function initializeArguments(): void
         );
         $this->registerArgument(
             'content',
-            \Traversable::class,
+            'array',
             'Content',
             false
         );
@@ -37,10 +41,7 @@ public function initializeArguments(): void
         );
     }
 
-    /**
-     * @return array
-     */
-    public function render()
+    public function render(): mixed
     {
         $key = $this->arguments['key'];
         $content = $this->arguments['content'];
@@ -51,7 +52,7 @@ public function render()
 
         try {
             $result = $this->extractByKey($content, $key);
-        } catch (\Exception) {
+        } catch (Exception) {
             $result = [];
         }
 
@@ -66,6 +67,7 @@ public function render()
             if (isset($backup) === true) {
                 $this->templateVariableContainer->add($this->arguments['as'], $backup);
             }
+
             return $content;
         }
 
@@ -75,12 +77,12 @@ public function render()
     /**
      * Extract by key
      *
-     * @throws \Exception
+     * @throws Exception
      */
     public function extractByKey($iterator, string $key): mixed
     {
-        if ((is_array($iterator) === false) && ($iterator instanceof \Traversable === false)) {
-            throw new \Exception('Traversable object or array expected but received ' . gettype($iterator), 1361532490);
+        if ((is_array($iterator) === false) && ($iterator instanceof Traversable === false)) {
+            throw new Exception('Traversable object or array expected but received ' . gettype($iterator), 1361532490);
         }
 
         return $iterator[$key];
diff --git a/Classes/ViewHelpers/Variable/GetViewHelper.php b/Classes/ViewHelpers/Variable/GetViewHelper.php
index edd4e532..c78117d1 100644
--- a/Classes/ViewHelpers/Variable/GetViewHelper.php
+++ b/Classes/ViewHelpers/Variable/GetViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Variable;
 
 /*
@@ -9,6 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Exception;
 use TYPO3\CMS\Extbase\Reflection\ObjectAccess;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
@@ -70,20 +73,18 @@ public function initializeArguments(): void
 
     /**
      * Get the value of $name.
-     *
-     * @return mixed
      */
-    public function render()
+    public function render(): mixed
     {
         $name = $this->arguments['name'];
         $useRawKeys = $this->arguments['useRawKeys'];
 
-        if (!str_contains((string)$name, '.')) {
+        if (!str_contains((string) $name, '.')) {
             if ($this->templateVariableContainer->exists($name) === true) {
                 return $this->templateVariableContainer->get($name);
             }
         } else {
-            $segments = explode('.', (string)$name);
+            $segments = explode('.', (string) $name);
             $templateVariableRootName = $lastSegment = array_shift($segments);
             if ($this->templateVariableContainer->exists($templateVariableRootName) === true) {
                 $templateVariableRoot = $this->templateVariableContainer->get($templateVariableRootName);
@@ -94,7 +95,7 @@ public function render()
                     $value = $templateVariableRoot;
                     foreach ($segments as $segment) {
                         if (ctype_digit($segment) === true) {
-                            $segment = (int)$segment;
+                            $segment = (int) $segment;
                             $index = 0;
                             // Note: this loop approach is not a stupid solution. If you doubt this,
                             // attempt to feth a number at a numeric index from ObjectStorage ;)
@@ -103,18 +104,20 @@ public function render()
                                     $value = $possibleValue;
                                     break;
                                 }
-                                ++$index;
+                                $index++;
                             }
                             continue;
                         }
                         $value = ObjectAccess::getProperty($value, $segment);
                     }
+
                     return $value;
-                } catch (\Exception) {
+                } catch (Exception) {
                     return null;
                 }
             }
         }
+
         return null;
     }
 }
diff --git a/Classes/ViewHelpers/Variable/SetViewHelper.php b/Classes/ViewHelpers/Variable/SetViewHelper.php
index a4a526fb..7b5affcb 100644
--- a/Classes/ViewHelpers/Variable/SetViewHelper.php
+++ b/Classes/ViewHelpers/Variable/SetViewHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\ViewHelpers\Variable;
 
 /*
@@ -9,6 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Exception;
 use TYPO3\CMS\Extbase\Reflection\ObjectAccess;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
@@ -85,13 +88,13 @@ public function render()
         if ($value === null) {
             $value = $this->renderChildren();
         }
-        if (!str_contains((string)$name, '.')) {
+        if (!str_contains((string) $name, '.')) {
             if ($this->templateVariableContainer->exists($name) === true) {
                 $this->templateVariableContainer->remove($name);
             }
             $this->templateVariableContainer->add($name, $value);
-        } elseif (substr_count((string)$name, '.') === 1) {
-            $parts = explode('.', (string)$name);
+        } elseif (mb_substr_count((string) $name, '.') === 1) {
+            $parts = explode('.', (string) $name);
             $objectName = array_shift($parts);
             $path = implode('.', $parts);
             if ($this->templateVariableContainer->exists($objectName) === false) {
@@ -103,10 +106,11 @@ public function render()
                 // Note: re-insert the variable to ensure unreferenced values like arrays also get updated
                 $this->templateVariableContainer->remove($objectName);
                 $this->templateVariableContainer->add($objectName, $object);
-            } catch (\Exception) {
+            } catch (Exception) {
                 return null;
             }
         }
+
         return null;
     }
 }
diff --git a/Classes/Widgets/PaymentPaidShippingOpen.php b/Classes/Widgets/PaymentPaidShippingOpen.php
index 81990dc1..c5ae1a87 100644
--- a/Classes/Widgets/PaymentPaidShippingOpen.php
+++ b/Classes/Widgets/PaymentPaidShippingOpen.php
@@ -17,19 +17,20 @@
 use TYPO3\CMS\Dashboard\Widgets\RequestAwareWidgetInterface;
 use TYPO3\CMS\Dashboard\Widgets\WidgetConfigurationInterface;
 use TYPO3\CMS\Dashboard\Widgets\WidgetInterface;
-use TYPO3\CMS\Fluid\View\StandaloneView;
 
-class PaymentPaidShippingOpen implements WidgetInterface, RequestAwareWidgetInterface
+class PaymentPaidShippingOpen implements RequestAwareWidgetInterface, WidgetInterface
 {
     private ServerRequestInterface $request;
-    private StandaloneView|ViewInterface $view;
+
+    private ViewInterface $view;
 
     public function __construct(
         private readonly WidgetConfigurationInterface $configuration,
         private readonly ListDataProviderInterface $dataProvider,
         private readonly BackendViewFactory $backendViewFactory,
         private readonly array $options = []
-    ) {}
+    ) {
+    }
 
     public function setRequest(ServerRequestInterface $request): void
     {
@@ -48,6 +49,7 @@ public function renderWidgetContent(): string
 
         return $this->view->render('Widget/CartPaymentPaidShippingOpen');
     }
+
     public function getOptions(): array
     {
         return $this->options;
diff --git a/Classes/Widgets/Provider/OrderItemsProvider.php b/Classes/Widgets/Provider/OrderItemsProvider.php
index 38fdea4f..deec9d8e 100644
--- a/Classes/Widgets/Provider/OrderItemsProvider.php
+++ b/Classes/Widgets/Provider/OrderItemsProvider.php
@@ -2,13 +2,6 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\Widgets\Provider;
 
 use TYPO3\CMS\Core\Database\Connection;
@@ -33,9 +26,6 @@ public function __construct(
         );
     }
 
-    /**
-     * @return array
-     */
     public function getItems(): array
     {
         $constraints = [];
@@ -51,7 +41,8 @@ public function getItems(): array
             )
             ->from('tx_cart_domain_model_order_item')
             ->orderBy($this->options['order_by'], $this->options['order_order'])
-            ->setMaxResults($this->options['limit']);
+            ->setMaxResults($this->options['limit'])
+        ;
 
         $this->queryBuilder
             ->leftJoin(
@@ -63,7 +54,8 @@ public function getItems(): array
                     $this->queryBuilder->quoteIdentifier('payment.item')
                 )
             )
-            ->addSelect('payment.name AS payment_name', 'payment.status AS payment_status');
+            ->addSelect('payment.name AS payment_name', 'payment.status AS payment_status')
+        ;
 
         if (is_array($this->options['filter']) && is_array($this->options['filter']['payment']) && !empty($this->options['filter']['payment']['status'])) {
             $constraints[] = $this->queryBuilder->expr()->eq(
@@ -85,11 +77,13 @@ public function getItems(): array
                     $this->queryBuilder->quoteIdentifier('shipping.item')
                 )
             )
-            ->addSelect('shipping.name AS shipping_name', 'shipping.status AS shipping_status');
+            ->addSelect('shipping.name AS shipping_name', 'shipping.status AS shipping_status')
+        ;
 
         if (is_array($this->options['filter'])
             && is_array($this->options['filter']['shipping'])
-            && !empty($this->options['filter']['shipping']['status'])) {
+            && !empty($this->options['filter']['shipping']['status'])
+        ) {
             $constraints[] = $this->queryBuilder->expr()->eq(
                 'shipping.status',
                 $this->queryBuilder->createNamedParameter(
diff --git a/Classes/Widgets/Provider/OrdersPerDayProvider.php b/Classes/Widgets/Provider/OrdersPerDayProvider.php
index d810e81f..ee250114 100644
--- a/Classes/Widgets/Provider/OrdersPerDayProvider.php
+++ b/Classes/Widgets/Provider/OrdersPerDayProvider.php
@@ -2,16 +2,9 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\Widgets\Provider;
 
-use Extcode\Cart\Constants;
+use Extcode\Cart\Configuration\Constants;
 use TYPO3\CMS\Core\Database\Connection;
 use TYPO3\CMS\Core\Database\Query\QueryBuilder;
 use TYPO3\CMS\Core\Localization\LanguageService;
@@ -23,6 +16,7 @@
 class OrdersPerDayProvider implements ChartDataProviderInterface
 {
     private readonly LanguageService $languageService;
+
     private array $options;
 
     public function __construct(
@@ -75,9 +69,25 @@ public function getChartData(): array
         ];
     }
 
+    public function getOrderItemsInPeriod(int $start, int $end): int
+    {
+        $constraints = [
+            $this->queryBuilder->expr()->gte($this->options['fieldName'], $start),
+            $this->queryBuilder->expr()->lte($this->options['fieldName'], $end),
+        ];
+
+        $this->queryBuilder
+            ->count('*')
+            ->from('tx_cart_domain_model_order_item')
+            ->where(... $constraints)
+        ;
+
+        return $this->queryBuilder->executeQuery()->fetchOne();
+    }
+
     private function calculateData(): array
     {
-        $days = (int)$this->options['days'];
+        $days = (int) $this->options['days'];
         $labels = [];
         $data = [];
 
@@ -103,22 +113,4 @@ private function calculateData(): array
             $data,
         ];
     }
-
-    public function getOrderItemsInPeriod(int $start, int $end): int
-    {
-        $constraints = [
-            $this->queryBuilder->expr()->gte($this->options['fieldName'], $start),
-            $this->queryBuilder->expr()->lte($this->options['fieldName'], $end),
-        ];
-
-        $this->queryBuilder
-            ->count('*')
-            ->from('tx_cart_domain_model_order_item');
-
-        if ($constraints !== []) {
-            $this->queryBuilder->where(... $constraints);
-        }
-
-        return $this->queryBuilder->executeQuery()->fetchOne();
-    }
 }
diff --git a/Classes/Widgets/Provider/TurnoverPerDayProvider.php b/Classes/Widgets/Provider/TurnoverPerDayProvider.php
index 9b69ae34..ee13e873 100644
--- a/Classes/Widgets/Provider/TurnoverPerDayProvider.php
+++ b/Classes/Widgets/Provider/TurnoverPerDayProvider.php
@@ -2,16 +2,9 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\Widgets\Provider;
 
-use Extcode\Cart\Constants;
+use Extcode\Cart\Configuration\Constants;
 use TYPO3\CMS\Core\Database\Query\QueryBuilder;
 use TYPO3\CMS\Core\Localization\LanguageService;
 use TYPO3\CMS\Core\Localization\LanguageServiceFactory;
@@ -22,6 +15,7 @@
 class TurnoverPerDayProvider implements ChartDataProviderInterface
 {
     private readonly LanguageService $languageService;
+
     private array $options;
 
     public function __construct(
@@ -55,9 +49,27 @@ public function getChartData(): array
         ];
     }
 
+    public function getOrderItemsInPeriod(int $start, int $end): float
+    {
+        $constraints = [
+            $this->queryBuilder->expr()->gte($this->options['fieldName'], $start),
+            $this->queryBuilder->expr()->lte($this->options['fieldName'], $end),
+        ];
+
+        $this->queryBuilder
+            ->selectLiteral(
+                $this->queryBuilder->expr()->sum('tx_cart_domain_model_order_item.' . $this->options['sum'], 'turnover')
+            )
+            ->from('tx_cart_domain_model_order_item')
+            ->where(... $constraints)
+        ;
+
+        return $this->queryBuilder->executeQuery()->fetchOne() ?? 0;
+    }
+
     private function calculateData(): array
     {
-        $days = (int)$this->options['days'];
+        $days = (int) $this->options['days'];
         $labels = [];
         $data = [];
 
@@ -83,24 +95,4 @@ private function calculateData(): array
             $data,
         ];
     }
-
-    public function getOrderItemsInPeriod(int $start, int $end): float
-    {
-        $constraints = [
-            $this->queryBuilder->expr()->gte($this->options['fieldName'], $start),
-            $this->queryBuilder->expr()->lte($this->options['fieldName'], $end),
-        ];
-
-        $this->queryBuilder
-            ->selectLiteral(
-                $this->queryBuilder->expr()->sum('tx_cart_domain_model_order_item.' . $this->options['sum'], 'turnover')
-            )
-            ->from('tx_cart_domain_model_order_item');
-
-        if ($constraints !== []) {
-            $this->queryBuilder->where(... $constraints);
-        }
-
-        return $this->queryBuilder->executeQuery()->fetchOne() ?? 0;
-    }
 }
diff --git a/Configuration/Backend/Modules.php b/Configuration/Backend/Modules.php
index 59a4f200..4f30cb9d 100644
--- a/Configuration/Backend/Modules.php
+++ b/Configuration/Backend/Modules.php
@@ -9,9 +9,7 @@
 
 $_LLL_be = 'LLL:EXT:cart/Resources/Private/Language/locallang_be.xlf:';
 
-/**
- * Definitions for modules provided by EXT:cart
- */
+// Definitions for modules provided by EXT:cart
 return [
     'cart_cart_main' => [
         'access' => '',
diff --git a/Configuration/Backend/Provider/OrdersPerDayProvider.php b/Configuration/Backend/Provider/OrdersPerDayProvider.php
index 1596fb5b..7828fdc5 100644
--- a/Configuration/Backend/Provider/OrdersPerDayProvider.php
+++ b/Configuration/Backend/Provider/OrdersPerDayProvider.php
@@ -8,7 +8,7 @@
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfony\Component\DependencyInjection\Reference;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('extcode.cart.provider.orders_per_day')
@@ -23,5 +23,6 @@
                     'status' => 'open',
                 ],
             ],
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Backend/Provider/PaymentPaidShippingOpenProvider.php b/Configuration/Backend/Provider/PaymentPaidShippingOpenProvider.php
index 4fa269e1..e1a33304 100644
--- a/Configuration/Backend/Provider/PaymentPaidShippingOpenProvider.php
+++ b/Configuration/Backend/Provider/PaymentPaidShippingOpenProvider.php
@@ -8,7 +8,7 @@
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfony\Component\DependencyInjection\Reference;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('extcode.cart.provider.payment_paid_shipping_open')
@@ -23,5 +23,6 @@
                     'status' => 'open',
                 ],
             ],
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Backend/Provider/TurnoverPerDayProvider.php b/Configuration/Backend/Provider/TurnoverPerDayProvider.php
index b82b63be..cfc6b8db 100644
--- a/Configuration/Backend/Provider/TurnoverPerDayProvider.php
+++ b/Configuration/Backend/Provider/TurnoverPerDayProvider.php
@@ -8,7 +8,7 @@
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfony\Component\DependencyInjection\Reference;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('extcode.cart.provider.turnover_per_day')
@@ -16,5 +16,6 @@
         ->arg('$queryBuilder', new Reference('querybuilder.tx_cart_domain_model_order_item'))
         ->arg('$options', [
             'sum' => 'total_gross',
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Backend/Widgets/OrdersPerDayWidget.php b/Configuration/Backend/Widgets/OrdersPerDayWidget.php
index da2c39b1..04ac2393 100644
--- a/Configuration/Backend/Widgets/OrdersPerDayWidget.php
+++ b/Configuration/Backend/Widgets/OrdersPerDayWidget.php
@@ -9,7 +9,7 @@
 use TYPO3\CMS\Backend\View\BackendViewFactory;
 use TYPO3\CMS\Dashboard\Widgets\BarChartWidget;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('dashboard.widget.extcode.cart.orders_per_day')
@@ -24,5 +24,6 @@
             'iconIdentifier' => 'content-widget-chart-bar',
             'height' => 'medium',
             'width' => 'medium',
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Backend/Widgets/PaymentPaidShippingOpenWidget.php b/Configuration/Backend/Widgets/PaymentPaidShippingOpenWidget.php
index 2de2712f..17193ac7 100644
--- a/Configuration/Backend/Widgets/PaymentPaidShippingOpenWidget.php
+++ b/Configuration/Backend/Widgets/PaymentPaidShippingOpenWidget.php
@@ -9,7 +9,7 @@
 use Symfony\Component\DependencyInjection\Reference;
 use TYPO3\CMS\Backend\View\BackendViewFactory;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('dashboard.widget.extcode.cart.payment_paid_shipping_open')
@@ -24,5 +24,6 @@
             'iconIdentifier' => 'content-widget-list',
             'height' => 'large',
             'width' => 'medium',
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Backend/Widgets/TurnoverPerDayWidget.php b/Configuration/Backend/Widgets/TurnoverPerDayWidget.php
index e5114482..00f7c6fc 100644
--- a/Configuration/Backend/Widgets/TurnoverPerDayWidget.php
+++ b/Configuration/Backend/Widgets/TurnoverPerDayWidget.php
@@ -9,7 +9,7 @@
 use TYPO3\CMS\Backend\View\BackendViewFactory;
 use TYPO3\CMS\Dashboard\Widgets\BarChartWidget;
 
-return function (ContainerConfigurator $configurator) {
+return static function (ContainerConfigurator $configurator): void {
     $services = $configurator->services();
 
     $services->set('dashboard.widget.extcode.cart.turnover_per_day')
@@ -24,5 +24,6 @@
             'iconIdentifier' => 'content-widget-chart-bar',
             'height' => 'medium',
             'width' => 'medium',
-        ]);
+        ])
+    ;
 };
diff --git a/Configuration/Icons.php b/Configuration/Icons.php
index 5a0afe74..950fecae 100644
--- a/Configuration/Icons.php
+++ b/Configuration/Icons.php
@@ -1,28 +1,32 @@
 <?php
 
+declare(strict_types=1);
+
+use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
+
 return [
     'apps-pagetree-folder-cart-coupons' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/apps_pagetree_folder_cart_coupons.svg',
     ],
     'apps-pagetree-folder-cart-orders' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/apps_pagetree_folder_cart_orders.svg',
     ],
     'apps-pagetree-page-cart-cart' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/apps_pagetree_page_cart_cart.svg',
     ],
     'ext-cart-wizard-icon' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/cart_plugin_wizard.svg',
     ],
     'ext-cart-module' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/module.svg',
     ],
     'ext-cart-module-order' => [
-        'provider' => \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
+        'provider' => SvgIconProvider::class,
         'source' => 'EXT:cart/Resources/Public/Icons/module_orders.svg',
     ],
 ];
diff --git a/Configuration/JavaScriptModules.php b/Configuration/JavaScriptModules.php
index f576aaaa..ac4873a7 100644
--- a/Configuration/JavaScriptModules.php
+++ b/Configuration/JavaScriptModules.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     'dependencies' => ['backend'],
     'imports' => [
diff --git a/Configuration/Services.php b/Configuration/Services.php
index 7579a4ec..3841a171 100644
--- a/Configuration/Services.php
+++ b/Configuration/Services.php
@@ -4,11 +4,15 @@
 
 namespace Extcode\Cart\Configuration;
 
+use Extcode\Cart\Hooks\ItemsProcFunc;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use TYPO3\CMS\Dashboard\Widgets\BarChartWidget;
+use TYPO3\CMS\Form\Mvc\Configuration\ConfigurationManager;
+use TYPO3\CMS\Form\Mvc\Persistence\FormPersistenceManager;
 
-return function (ContainerConfigurator $containerConfigurator, ContainerBuilder $containerBuilder) {
-    if ($containerBuilder->hasDefinition('TYPO3\CMS\Dashboard\Widgets\BarChartWidget')) {
+return static function (ContainerConfigurator $containerConfigurator, ContainerBuilder $containerBuilder): void {
+    if ($containerBuilder->hasDefinition(BarChartWidget::class)) {
         $containerConfigurator->import('Backend/Provider/PaymentPaidShippingOpenProvider.php');
         $containerConfigurator->import('Backend/Widgets/PaymentPaidShippingOpenWidget.php');
 
@@ -20,14 +24,16 @@
     }
 
     if (
-        $containerBuilder->hasDefinition('TYPO3\CMS\Form\Mvc\Configuration\ConfigurationManager')
-        && $containerBuilder->hasDefinition('TYPO3\CMS\Form\Mvc\Persistence\FormPersistenceManager')
+        $containerBuilder->hasDefinition(ConfigurationManager::class)
+        && $containerBuilder->hasDefinition(FormPersistenceManager::class)
     ) {
         $services = $containerConfigurator->services();
 
-        $services->set('Extcode\Cart\Hooks\ItemsProcFunc')
-            ->public();
+        $services->set(ItemsProcFunc::class)
+            ->public()
+        ;
     }
 
+    $containerConfigurator->import('Services/Configuration.php');
     $containerConfigurator->import('Services/ConsoleCommands.php');
 };
diff --git a/Configuration/Services.yaml b/Configuration/Services.yaml
index 36b69b7c..9d796d79 100644
--- a/Configuration/Services.yaml
+++ b/Configuration/Services.yaml
@@ -138,22 +138,6 @@ services:
         identifier: 'cart--order--update--log-service-update'
         event: Extcode\Cart\Event\Order\UpdateServiceEvent
 
-  Extcode\Cart\Service\CurrencyTranslationServiceInterface:
-    alias: Extcode\Cart\Service\CurrencyTranslationService
-    public: true
-
-  Extcode\Cart\Service\PaymentMethodsFromTypoScriptService:
-    public: true
-
-  Extcode\Cart\Service\ShippingMethodsFromTypoScriptService:
-    public: true
-
-  Extcode\Cart\Service\SpecialOptionsFromTypoScriptService:
-    public: true
-
-  Extcode\Cart\Service\TaxClassService:
-    public: true
-
   querybuilder.tx_cart_domain_model_order_item:
     class: 'TYPO3\CMS\Core\Database\Query\QueryBuilder'
     factory:
diff --git a/Configuration/Services/Configuration.php b/Configuration/Services/Configuration.php
new file mode 100644
index 00000000..7c7a1324
--- /dev/null
+++ b/Configuration/Services/Configuration.php
@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoader;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
+use Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\ShippingMethodsLoaderInterface;
+use Extcode\Cart\Configuration\Loader\SiteSets\PaymentMethodsLoader as SiteSetsPaymentMethodsLoader;
+use Extcode\Cart\Configuration\Loader\SiteSets\ShippingMethodsLoader as SiteSetsShippingMethodsLoader;
+use Extcode\Cart\Configuration\Loader\SiteSets\TaxClassLoader as SiteSetsTaxClassLoader;
+use Extcode\Cart\Configuration\Loader\TaxClassLoaderInterface;
+use Extcode\Cart\Configuration\Loader\TypoScript\PaymentMethodsLoader as TypoScriptPaymentMethodsLoader;
+use Extcode\Cart\Configuration\Loader\TypoScript\ShippingMethodsLoader as TypoScriptShippingMethodsLoader;
+use Extcode\Cart\Configuration\Loader\TypoScript\SpecialOptionsLoader;
+use Extcode\Cart\Configuration\Loader\TypoScript\TaxClassLoader as TypoScriptTaxClassLoader;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator
+        ->services()
+    ;
+
+    $services
+        ->alias(
+            CurrencyTranslationLoaderInterface::class,
+            CurrencyTranslationLoader::class
+        )
+    ;
+
+    $services
+        ->alias(
+            PaymentMethodsLoaderInterface::class,
+            TypoScriptPaymentMethodsLoader::class
+        )
+    ;
+
+    $services
+        ->set(SiteSetsPaymentMethodsLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->set(TypoScriptPaymentMethodsLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->alias(
+            ShippingMethodsLoaderInterface::class,
+            TypoScriptShippingMethodsLoader::class
+        )
+    ;
+
+    $services
+        ->set(SiteSetsShippingMethodsLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->set(TypoScriptShippingMethodsLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->set(SpecialOptionsLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->alias(
+            TaxClassLoaderInterface::class,
+            TypoScriptTaxClassLoader::class
+        )
+    ;
+
+    $services
+        ->set(SiteSetsTaxClassLoader::class)
+        ->public()
+    ;
+
+    $services
+        ->set(TypoScriptTaxClassLoader::class)
+        ->public()
+    ;
+};
diff --git a/Configuration/Services/ConsoleCommands.php b/Configuration/Services/ConsoleCommands.php
index f26b752b..23d3dcef 100644
--- a/Configuration/Services/ConsoleCommands.php
+++ b/Configuration/Services/ConsoleCommands.php
@@ -5,7 +5,7 @@
 use Extcode\Cart\Command\OrderItemCleanupCommand;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 
-return static function (ContainerConfigurator $containerConfigurator) {
+return static function (ContainerConfigurator $containerConfigurator): void {
     $services = $containerConfigurator
         ->services()
         ->defaults()
diff --git a/Configuration/Sets/Payments/config.yaml b/Configuration/Sets/Payments/config.yaml
new file mode 100644
index 00000000..be79c0c2
--- /dev/null
+++ b/Configuration/Sets/Payments/config.yaml
@@ -0,0 +1,2 @@
+name: extcode/cart-payments
+label: 'Cart Payment: Vorkasse'
diff --git a/Configuration/Sets/Payments/settings.yaml b/Configuration/Sets/Payments/settings.yaml
new file mode 100644
index 00000000..46b2f776
--- /dev/null
+++ b/Configuration/Sets/Payments/settings.yaml
@@ -0,0 +1,13 @@
+extcode:
+  cart-payments:
+    countries:
+      de:
+        preset: 1
+        options:
+          1:
+            title: 'Vorkasse'
+            extra: 0.0
+            taxClassId: 1
+            status: 'open'
+      at: .de
+      ch: .de
diff --git a/Configuration/Sets/Shippings/config.yaml b/Configuration/Sets/Shippings/config.yaml
new file mode 100644
index 00000000..6f60d14d
--- /dev/null
+++ b/Configuration/Sets/Shippings/config.yaml
@@ -0,0 +1,2 @@
+name: extcode/cart-shippings
+label: 'Cart Shippings: Standard'
diff --git a/Configuration/Sets/Shippings/settings.yaml b/Configuration/Sets/Shippings/settings.yaml
new file mode 100644
index 00000000..b5d12f37
--- /dev/null
+++ b/Configuration/Sets/Shippings/settings.yaml
@@ -0,0 +1,13 @@
+extcode:
+  cart-shippings:
+    countries:
+      de:
+        preset: 1
+        options:
+          1:
+            title: 'Standard'
+            extra: 7.95
+            taxClassId: 1
+            status: 'open'
+      at: .de
+      ch: .de
\ No newline at end of file
diff --git a/Configuration/Sets/TaxClass/config.yaml b/Configuration/Sets/TaxClass/config.yaml
new file mode 100644
index 00000000..2f543aad
--- /dev/null
+++ b/Configuration/Sets/TaxClass/config.yaml
@@ -0,0 +1,2 @@
+name: extcode/cart-taxclasses
+label: 'Cart Tax Classes'
diff --git a/Configuration/Sets/TaxClass/settings.yaml b/Configuration/Sets/TaxClass/settings.yaml
new file mode 100644
index 00000000..7ebb7ac9
--- /dev/null
+++ b/Configuration/Sets/TaxClass/settings.yaml
@@ -0,0 +1,14 @@
+extcode:
+  cart-taxclasses:
+    1:
+      value: 19
+      calc: 0.19
+      name: 'normal'
+    2:
+      value: 7
+      calc: 0.07
+      name: 'reduced'
+    3:
+      value: 0
+      calc: 0.00
+      name: 'free'
diff --git a/Configuration/TCA/Overrides/pages.php b/Configuration/TCA/Overrides/pages.php
index 1b367ba8..6e09eb02 100644
--- a/Configuration/TCA/Overrides/pages.php
+++ b/Configuration/TCA/Overrides/pages.php
@@ -1,27 +1,59 @@
 <?php
 
+declare(strict_types=1);
+
+use Extcode\Cart\Configuration\Constants;
+use TYPO3\CMS\Core\Domain\Repository\PageRepository;
+use TYPO3\CMS\Core\Utility\ArrayUtility;
+
 defined('TYPO3') or die();
 
-call_user_func(function () {
+(static function (): void {
     $_LLL_db = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf:';
 
-    $GLOBALS['TCA']['pages']['columns']['doktype']['config']['items'][] = [
-        'label' => $_LLL_db . 'pages.doktype.181',
-        'value' => 181,
-        'icon' => 'apps-pagetree-page-cart-cart',
-    ];
-    $GLOBALS['TCA']['pages']['columns']['module']['config']['items'][] = [
-        'label' => $_LLL_db . 'tcarecords-pages-contains.cart_coupons',
-        'value' => 'coupons',
-        'icon' => 'apps-pagetree-folder-cart-coupons',
-    ];
-    $GLOBALS['TCA']['pages']['columns']['module']['config']['items'][] = [
-        'label' => $_LLL_db . 'tcarecords-pages-contains.cart_orders',
-        'value' => 'orders',
-        'icon' => 'apps-pagetree-folder-cart-orders',
-    ];
-
-    $GLOBALS['TCA']['pages']['ctrl']['typeicon_classes'][181] = 'apps-pagetree-page-cart-cart';
-    $GLOBALS['TCA']['pages']['ctrl']['typeicon_classes']['contains-coupons'] = 'apps-pagetree-folder-cart-coupons';
-    $GLOBALS['TCA']['pages']['ctrl']['typeicon_classes']['contains-orders'] = 'apps-pagetree-folder-cart-orders';
-});
+    ArrayUtility::mergeRecursiveWithOverrule(
+        $GLOBALS['TCA']['pages'],
+        [
+            'columns' => [
+                'doktype' => [
+                    'config' => [
+                        'items' => [
+                            1776199422 => [
+                                'label' => $_LLL_db . 'pages.doktype.' . Constants::DOKTYPE_CART_CART,
+                                'value' => Constants::DOKTYPE_CART_CART,
+                                'icon' => 'apps-pagetree-page-cart-cart',
+                                'group' => 'default',
+                            ],
+                        ],
+                    ],
+                ],
+                'module' => [
+                    'config' => [
+                        'items' => [
+                            1776199535 => [
+                                'label' => $_LLL_db . 'tcarecords-pages-contains.cart_coupons',
+                                'value' => 'coupons',
+                                'icon' => 'apps-pagetree-folder-cart-coupons',
+                            ],
+                            1776199573 => [
+                                'label' => $_LLL_db . 'tcarecords-pages-contains.cart_orders',
+                                'value' => 'orders',
+                                'icon' => 'apps-pagetree-folder-cart-orders',
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+            'ctrl' => [
+                'typeicon_classes' => [
+                    Constants::DOKTYPE_CART_CART => 'apps-pagetree-page-cart-cart',
+                    'contains-coupons' => 'apps-pagetree-folder-cart-coupons',
+                    'contains-orders' => 'apps-pagetree-folder-cart-orders',
+                ],
+            ],
+            'types' => [
+                Constants::DOKTYPE_CART_CART => $GLOBALS['TCA']['pages']['types'][(string) PageRepository::DOKTYPE_DEFAULT],
+            ],
+        ]
+    );
+})();
diff --git a/Configuration/TCA/Overrides/sys_template.php b/Configuration/TCA/Overrides/sys_template.php
index 846a4ff4..f561a2d9 100644
--- a/Configuration/TCA/Overrides/sys_template.php
+++ b/Configuration/TCA/Overrides/sys_template.php
@@ -1,13 +1,15 @@
 <?php
 
+declare(strict_types=1);
+
 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 
 defined('TYPO3') or die();
 
-call_user_func(function () {
+(static function (): void {
     ExtensionManagementUtility::addStaticFile(
         'cart',
         'Configuration/TypoScript',
         'Shopping Cart - Cart'
     );
-});
+})();
diff --git a/Configuration/TCA/Overrides/tt_content.php b/Configuration/TCA/Overrides/tt_content.php
index d191504d..833c8b53 100644
--- a/Configuration/TCA/Overrides/tt_content.php
+++ b/Configuration/TCA/Overrides/tt_content.php
@@ -1,12 +1,13 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
-use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Utility\ExtensionUtility;
 
-call_user_func(function () {
+(static function (): void {
     $_LLL_db = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf:';
 
     $pluginNames = [
@@ -25,30 +26,23 @@
     ];
 
     foreach ($pluginNames as $pluginName => $pluginConfig) {
-        $pluginSignature = 'cart_' . strtolower($pluginName);
+        $pluginSignature = 'cart_' . mb_strtolower($pluginName);
+
+        $flexFormPath = 'EXT:cart/Configuration/FlexForms/' . $pluginName . 'Plugin.xml';
+        if (file_exists(GeneralUtility::getFileAbsFileName($flexFormPath))) {
+            $flexFormPath = 'FILE:' . $flexFormPath;
+        } else {
+            $flexFormPath = '';
+        }
 
         ExtensionUtility::registerPlugin(
             'Cart',
             $pluginName,
             $_LLL_db . 'tx_cart.plugin.' . $pluginSignature,
             $pluginConfig['iconIdentifier'],
-            'cart'
+            'cart',
+            $_LLL_db . 'tx_cart.plugin.' . $pluginSignature . '.description',
+            $flexFormPath
         );
-
-        $flexFormPath = 'EXT:cart/Configuration/FlexForms/' . $pluginName . 'Plugin.xml';
-        if (file_exists(GeneralUtility::getFileAbsFileName($flexFormPath))) {
-            ExtensionManagementUtility::addPiFlexFormValue(
-                '*',
-                'FILE:' . $flexFormPath,
-                $pluginSignature
-            );
-            // Add the FlexForm to the show item list
-            ExtensionManagementUtility::addToAllTCAtypes(
-                'tt_content',
-                '--div--;LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:tabs.plugin, pi_flexform',
-                $pluginSignature,
-                'after:palette:headers'
-            );
-        }
     }
-});
+})();
diff --git a/Configuration/TCA/tx_cart_domain_model_cart.php b/Configuration/TCA/tx_cart_domain_model_cart.php
index 244445fd..25f79f01 100644
--- a/Configuration/TCA/tx_cart_domain_model_cart.php
+++ b/Configuration/TCA/tx_cart_domain_model_cart.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -17,12 +19,10 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => '',
     ],
     'types' => [
         '1' => [
-            'showitem'
-                => 'pid, f_hash, s_hash, fe_user, was_ordered, order_item, serialized_cart',
+            'showitem' => 'pid, f_hash, s_hash, fe_user, was_ordered, order_item, serialized_cart',
         ],
     ],
     'palettes' => [
diff --git a/Configuration/TCA/tx_cart_domain_model_coupon.php b/Configuration/TCA/tx_cart_domain_model_coupon.php
index 5f01fa5a..a8641e8e 100644
--- a/Configuration/TCA/tx_cart_domain_model_coupon.php
+++ b/Configuration/TCA/tx_cart_domain_model_coupon.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 use Extcode\Cart\Domain\Model\Cart\CartCouponPercentage;
@@ -24,7 +26,6 @@
             'starttime' => 'starttime',
             'endtime' => 'endtime',
         ],
-        'searchFields' => 'title',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/tx_cart_domain_model_coupon.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_address.php b/Configuration/TCA/tx_cart_domain_model_order_address.php
index ab92024d..4a9b9b5b 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_address.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_address.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Extcode\Cart\Domain\Model\Order\BillingAddress;
 use Extcode\Cart\Domain\Model\Order\ShippingAddress;
 
@@ -22,7 +24,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'first_name, last_name, street, zip, city',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Address.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_discount.php b/Configuration/TCA/tx_cart_domain_model_order_discount.php
index 6cb12d0f..cc238adc 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_discount.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_discount.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -18,7 +20,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'title',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Discount.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_item.php b/Configuration/TCA/tx_cart_domain_model_order_item.php
index 43b5fb10..ae823619 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_item.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_item.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Extcode\Cart\Domain\Model\Order\BillingAddress;
 use Extcode\Cart\Domain\Model\Order\ShippingAddress;
 
@@ -20,13 +22,11 @@
         'origUid' => 't3_origuid',
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'order_number, invoice_number',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Item.svg',
     ],
     'types' => [
         '1' => [
-            'showitem'
-                => 'pid, fe_user,
+            'showitem' => 'pid, fe_user,
                 --palette--;' . $_LLL . ':tx_cart_domain_model_order_item.palettes.numbers;numbers,
                 --palette--;' . $_LLL . ':tx_cart_domain_model_order_item.palettes.addresses;addresses,
                 --palette--;' . $_LLL . ':tx_cart_domain_model_order_item.palettes.price;price,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_payment.php b/Configuration/TCA/tx_cart_domain_model_order_payment.php
index e8e0e091..e277bf11 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_payment.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_payment.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -16,7 +18,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'name,value,calc,sum,',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Payment.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_product.php b/Configuration/TCA/tx_cart_domain_model_order_product.php
index ca16e8b2..17b67282 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_product.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_product.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -18,7 +20,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'sku,title',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Product.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_productadditional.php b/Configuration/TCA/tx_cart_domain_model_order_productadditional.php
index 2dfe85ec..c27f54fa 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_productadditional.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_productadditional.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -18,7 +20,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'additional_type,additional_key,additional_value',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/ProductAdditional.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_shipping.php b/Configuration/TCA/tx_cart_domain_model_order_shipping.php
index b92882e7..940e012e 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_shipping.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_shipping.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -16,7 +18,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'name,value,calc,sum,',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Shipping.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_tax.php b/Configuration/TCA/tx_cart_domain_model_order_tax.php
index d2c26eb2..57c14d73 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_tax.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_tax.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -16,7 +18,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => '',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Tax.svg',
         'type' => 'record_type',
     ],
diff --git a/Configuration/TCA/tx_cart_domain_model_order_taxclass.php b/Configuration/TCA/tx_cart_domain_model_order_taxclass.php
index ab9cac32..c77685f7 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_taxclass.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_taxclass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -16,7 +18,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'title,value,calc',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/TaxClass.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_order_transaction.php b/Configuration/TCA/tx_cart_domain_model_order_transaction.php
index 54bce6b7..f641afab 100644
--- a/Configuration/TCA/tx_cart_domain_model_order_transaction.php
+++ b/Configuration/TCA/tx_cart_domain_model_order_transaction.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -16,7 +18,6 @@
         'hideTable' => true,
         'delete' => 'deleted',
         'enablecolumns' => [],
-        'searchFields' => 'txn_id',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/Order/Transaction.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TCA/tx_cart_domain_model_tag.php b/Configuration/TCA/tx_cart_domain_model_tag.php
index 2dd64191..8396661b 100644
--- a/Configuration/TCA/tx_cart_domain_model_tag.php
+++ b/Configuration/TCA/tx_cart_domain_model_tag.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 $_LLL = 'LLL:EXT:cart/Resources/Private/Language/locallang_db.xlf';
@@ -22,7 +24,6 @@
             'starttime' => 'starttime',
             'endtime' => 'endtime',
         ],
-        'searchFields' => 'title',
         'iconfile' => 'EXT:cart/Resources/Public/Icons/tx_cart_domain_model_tag.svg',
     ],
     'hideTable' => 1,
diff --git a/Configuration/TypoScript/Payments/setup.typoscript b/Configuration/TypoScript/Payments/setup.typoscript
new file mode 100644
index 00000000..f5fbaa01
--- /dev/null
+++ b/Configuration/TypoScript/Payments/setup.typoscript
@@ -0,0 +1,19 @@
+plugin.tx_cart {
+    payments {
+        countries {
+            de {
+                preset = 1
+                options {
+                    1 {
+                        title = Vorkasse
+                        extra = 0.00
+                        taxClassId = 1
+                        status = open
+                    }
+                }
+            }
+            at < .de
+            ch < .de
+        }
+    }
+}
diff --git a/Configuration/TypoScript/Settings/countries.typoscript b/Configuration/TypoScript/Settings/countries.typoscript
new file mode 100644
index 00000000..27aa7c24
--- /dev/null
+++ b/Configuration/TypoScript/Settings/countries.typoscript
@@ -0,0 +1,21 @@
+plugin.tx_cart {
+    settings {
+        countries {
+            preset = 1
+            options {
+                1 {
+                    code = de
+                    label = Deutschland
+                }
+                2 {
+                    code = at
+                    label = Österreich
+                }
+                3 {
+                    code = ch
+                    label = Schweiz
+                }
+            }
+        }
+    }
+}
diff --git a/Configuration/TypoScript/Settings/currencies.typoscript b/Configuration/TypoScript/Settings/currencies.typoscript
new file mode 100644
index 00000000..d2a81d9b
--- /dev/null
+++ b/Configuration/TypoScript/Settings/currencies.typoscript
@@ -0,0 +1,23 @@
+plugin.tx_cart {
+    settings {
+        currencies {
+            preset = 1
+            options {
+                1 {
+                    code = EUR
+                    sign = €
+                    translation = 1.00
+                }
+            }
+        }
+
+        format.currency {
+            currencySign = {$plugin.tx_cart.settings.format.currency.currencySign}
+            decimalSeparator = {$plugin.tx_cart.settings.format.currency.decimalSeparator}
+            thousandsSeparator = {$plugin.tx_cart.settings.format.currency.thousandsSeparator}
+            prependCurrency = {$plugin.tx_cart.settings.format.currency.prependCurrency}
+            separateCurrency = {$plugin.tx_cart.settings.format.currency.separateCurrency}
+            decimals = {$plugin.tx_cart.settings.format.currency.decimals}
+        }
+    }
+}
diff --git a/Configuration/TypoScript/Settings/validation.typoscript b/Configuration/TypoScript/Settings/validation.typoscript
new file mode 100644
index 00000000..2b118736
--- /dev/null
+++ b/Configuration/TypoScript/Settings/validation.typoscript
@@ -0,0 +1,237 @@
+plugin.tx_cart {
+    settings {
+        validation {
+            orderItem {
+                fields {
+                    acceptTermsAndConditions {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.options.is}
+                    }
+                    acceptRevocationInstruction {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.options.is}
+                    }
+                    acceptPrivacyPolicy {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.options.is}
+                    }
+                }
+            }
+            billingAddress {
+                fields {
+                    salutation {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.salutation.validator}
+                    }
+                    title {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.title.validator}
+                    }
+                    firstName {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.firstName.validator}
+                    }
+                    lastName {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.lastName.validator}
+                    }
+                    email {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.email.validator}
+                    }
+                    phone {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.phone.validator}
+                    }
+                    fax {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.fax.validator}
+                    }
+                    company {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.company.validator}
+                    }
+                    taxIdentificationNumber {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.taxIdentificationNumber.validator}
+                    }
+                    street {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.street.validator}
+                    }
+                    streetNumber {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.streetNumber.validator}
+                    }
+                    addition {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.addition.validator}
+                    }
+                    zip {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.zip.validator}
+                    }
+                    city {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.city.validator}
+                    }
+                    country {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.country.validator}
+                    }
+                }
+            }
+            shippingAddress {
+                fields {
+                    salutation {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.salutation.validator}
+                    }
+                    title {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.title.validator}
+                    }
+                    firstName {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.firstName.validator}
+                    }
+                    lastName {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.lastName.validator}
+                    }
+                    email {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.email.validator}
+                    }
+                    phone {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.phone.validator}
+                    }
+                    fax {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.fax.validator}
+                    }
+                    company {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.company.validator}
+                    }
+                    taxIdentificationNumber {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.taxIdentificationNumber.validator}
+                    }
+                    street {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.street.validator}
+                    }
+                    streetNumber {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.streetNumber.validator}
+                    }
+                    addition {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.addition.validator}
+                    }
+                    zip {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.zip.validator}
+                    }
+                    city {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.city.validator}
+                    }
+                    country {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.country.validator}
+                    }
+                }
+            }
+        }
+
+        validation {
+            orderItem {
+                fields {
+                    acceptTermsAndConditions {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.options.is}
+                    }
+                    acceptRevocationInstruction {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.options.is}
+                    }
+                    acceptPrivacyPolicy {
+                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.validator}
+                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.options.is}
+                    }
+                }
+            }
+            billingAddress {
+                fields {
+                    salutation {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.salutation.validator}
+                    }
+                    title {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.title.validator}
+                    }
+                    firstName {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.firstName.validator}
+                    }
+                    lastName {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.lastName.validator}
+                    }
+                    email {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.email.validator}
+                    }
+                    phone {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.phone.validator}
+                    }
+                    fax {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.fax.validator}
+                    }
+                    company {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.company.validator}
+                    }
+                    taxIdentificationNumber {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.taxIdentificationNumber.validator}
+                    }
+                    street {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.street.validator}
+                    }
+                    streetNumber {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.streetNumber.validator}
+                    }
+                    addition {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.addition.validator}
+                    }
+                    zip {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.zip.validator}
+                    }
+                    city {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.city.validator}
+                    }
+                    country {
+                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.country.validator}
+                    }
+                }
+            }
+            shippingAddress {
+                fields {
+                    salutation {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.salutation.validator}
+                    }
+                    title {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.title.validator}
+                    }
+                    firstName {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.firstName.validator}
+                    }
+                    lastName {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.lastName.validator}
+                    }
+                    email {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.email.validator}
+                    }
+                    phone {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.phone.validator}
+                    }
+                    fax {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.fax.validator}
+                    }
+                    company {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.company.validator}
+                    }
+                    taxIdentificationNumber {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.taxIdentificationNumber.validator}
+                    }
+                    street {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.street.validator}
+                    }
+                    streetNumber {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.streetNumber.validator}
+                    }
+                    addition {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.addition.validator}
+                    }
+                    zip {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.zip.validator}
+                    }
+                    city {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.city.validator}
+                    }
+                    country {
+                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.country.validator}
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/Configuration/TypoScript/Shippings/setup.typoscript b/Configuration/TypoScript/Shippings/setup.typoscript
new file mode 100644
index 00000000..e3f58c4e
--- /dev/null
+++ b/Configuration/TypoScript/Shippings/setup.typoscript
@@ -0,0 +1,19 @@
+plugin.tx_cart {
+    shippings {
+        countries {
+            de {
+                preset = 1
+                options {
+                    1 {
+                        title = Standard
+                        extra = 0.00
+                        taxClassId = 1
+                        status = open
+                    }
+                }
+            }
+            at < .de
+            ch < .de
+        }
+    }
+}
diff --git a/Configuration/TypoScript/TaxClasses/setup.typoscript b/Configuration/TypoScript/TaxClasses/setup.typoscript
new file mode 100644
index 00000000..08d7c6d9
--- /dev/null
+++ b/Configuration/TypoScript/TaxClasses/setup.typoscript
@@ -0,0 +1,19 @@
+plugin.tx_cart {
+    taxClasses {
+        1 {
+            value = {$plugin.tx_cart.taxClasses.1.value}
+            calc = {$plugin.tx_cart.taxClasses.1.calc}
+            name = {$plugin.tx_cart.taxClasses.1.name}
+        }
+        2 {
+            value = {$plugin.tx_cart.taxClasses.2.value}
+            calc = {$plugin.tx_cart.taxClasses.2.calc}
+            name = {$plugin.tx_cart.taxClasses.2.name}
+        }
+        3 {
+            value = {$plugin.tx_cart.taxClasses.3.value}
+            calc = {$plugin.tx_cart.taxClasses.3.calc}
+            name = {$plugin.tx_cart.taxClasses.3.name}
+        }
+    }
+}
diff --git a/Configuration/TypoScript/setup.typoscript b/Configuration/TypoScript/setup.typoscript
index addd23b0..c83f7456 100755
--- a/Configuration/TypoScript/setup.typoscript
+++ b/Configuration/TypoScript/setup.typoscript
@@ -71,44 +71,6 @@ plugin.tx_cart {
             addToCartByAjax = {$plugin.tx_cart.settings.addToCartByAjax}
         }
 
-        countries {
-            preset = 1
-            options {
-                1 {
-                    code = de
-                    label = Deutschland
-                }
-                2 {
-                    code = at
-                    label = Österreich
-                }
-                3 {
-                    code = ch
-                    label = Schweiz
-                }
-            }
-        }
-
-        currencies {
-            preset = 1
-            options {
-                1 {
-                    code = EUR
-                    sign = €
-                    translation = 1.00
-                }
-            }
-        }
-
-        format.currency {
-            currencySign = {$plugin.tx_cart.settings.format.currency.currencySign}
-            decimalSeparator = {$plugin.tx_cart.settings.format.currency.decimalSeparator}
-            thousandsSeparator = {$plugin.tx_cart.settings.format.currency.thousandsSeparator}
-            prependCurrency = {$plugin.tx_cart.settings.format.currency.prependCurrency}
-            separateCurrency = {$plugin.tx_cart.settings.format.currency.separateCurrency}
-            decimals = {$plugin.tx_cart.settings.format.currency.decimals}
-        }
-
         showAction {
             media {
                 image {
@@ -155,180 +117,14 @@ plugin.tx_cart {
                 }
             }
         }
-
-        validation {
-            orderItem {
-                fields {
-                    acceptTermsAndConditions {
-                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.validator}
-                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptTermsAndConditions.options.is}
-                    }
-                    acceptRevocationInstruction {
-                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.validator}
-                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptRevocationInstruction.options.is}
-                    }
-                    acceptPrivacyPolicy {
-                        validator = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.validator}
-                        options.is = {$plugin.tx_cart.settings.validation.orderItem.fields.acceptPrivacyPolicy.options.is}
-                    }
-                }
-            }
-            billingAddress {
-                fields {
-                    salutation {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.salutation.validator}
-                    }
-                    title {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.title.validator}
-                    }
-                    firstName {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.firstName.validator}
-                    }
-                    lastName {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.lastName.validator}
-                    }
-                    email {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.email.validator}
-                    }
-                    phone {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.phone.validator}
-                    }
-                    fax {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.fax.validator}
-                    }
-                    company {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.company.validator}
-                    }
-                    taxIdentificationNumber {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.taxIdentificationNumber.validator}
-                    }
-                    street {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.street.validator}
-                    }
-                    streetNumber {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.streetNumber.validator}
-                    }
-                    addition {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.addition.validator}
-                    }
-                    zip {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.zip.validator}
-                    }
-                    city {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.city.validator}
-                    }
-                    country {
-                        validator = {$plugin.tx_cart.settings.validation.billingAddress.fields.country.validator}
-                    }
-                }
-            }
-            shippingAddress {
-                fields {
-                    salutation {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.salutation.validator}
-                    }
-                    title {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.title.validator}
-                    }
-                    firstName {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.firstName.validator}
-                    }
-                    lastName {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.lastName.validator}
-                    }
-                    email {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.email.validator}
-                    }
-                    phone {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.phone.validator}
-                    }
-                    fax {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.fax.validator}
-                    }
-                    company {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.company.validator}
-                    }
-                    taxIdentificationNumber {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.taxIdentificationNumber.validator}
-                    }
-                    street {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.street.validator}
-                    }
-                    streetNumber {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.streetNumber.validator}
-                    }
-                    addition {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.addition.validator}
-                    }
-                    zip {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.zip.validator}
-                    }
-                    city {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.city.validator}
-                    }
-                    country {
-                        validator = {$plugin.tx_cart.settings.validation.shippingAddress.fields.country.validator}
-                    }
-                }
-            }
-        }
-    }
-
-    taxClasses {
-        1 {
-            value = {$plugin.tx_cart.taxClasses.1.value}
-            calc = {$plugin.tx_cart.taxClasses.1.calc}
-            name = {$plugin.tx_cart.taxClasses.1.name}
-        }
-        2 {
-            value = {$plugin.tx_cart.taxClasses.2.value}
-            calc = {$plugin.tx_cart.taxClasses.2.calc}
-            name = {$plugin.tx_cart.taxClasses.2.name}
-        }
-        3 {
-            value = {$plugin.tx_cart.taxClasses.3.value}
-            calc = {$plugin.tx_cart.taxClasses.3.calc}
-            name = {$plugin.tx_cart.taxClasses.3.name}
-        }
-    }
-
-    shippings {
-        countries {
-            de {
-                preset = 1
-                options {
-                    1 {
-                        title = Standard
-                        extra = 0.00
-                        taxClassId = 1
-                        status = open
-                    }
-                }
-            }
-            at < .de
-            ch < .de
-        }
-    }
-
-    payments {
-        countries {
-            de {
-                preset = 1
-                options {
-                    1 {
-                        title = Vorkasse
-                        extra = 0.00
-                        taxClassId = 1
-                        status = open
-                    }
-                }
-            }
-            at < .de
-            ch < .de
-        }
     }
 }
 
+@import 'EXT:cart/Configuration/TypoScript/Settings/*.typoscript'
+@import 'EXT:cart/Configuration/TypoScript/TaxClasses/setup.typoscript'
+@import 'EXT:cart/Configuration/TypoScript/Payments/setup.typoscript
+@import 'EXT:cart/Configuration/TypoScript/Shippings/setup.typoscript
+
 # use this lib to add custom information or content elements to your email template
 
 temp.cartMailContentElement = RECORDS
diff --git a/Documentation/Changelog/12.0/Breaking-756-AddSiteSetConfigurationLoader.rst b/Documentation/Changelog/12.0/Breaking-756-AddSiteSetConfigurationLoader.rst
new file mode 100644
index 00000000..6fa4cbfb
--- /dev/null
+++ b/Documentation/Changelog/12.0/Breaking-756-AddSiteSetConfigurationLoader.rst
@@ -0,0 +1,46 @@
+.. include:: ../../Includes.rst.txt
+
+==================================================
+Breaking: #756 - Add Site Set Configuration Loader
+==================================================
+
+See `Issue 756 <https://github.com/extcode/cart/issues/756>`__
+
+Description
+===========
+
+Regarding to the new feature configuring cart by site sets the
+code was restructured and the services to load configurations
+moved to `Configuration/Loader`.
+
+The interfaces was moved form `Service` to `Configuration`:
+
+`Classes/Service/CurrencyTranslationServiceInterface.php` => `Classes/Configuration/Loader/CurrencyTranslationLoaderInterface.php`
+`Classes/Service/TaxClassServiceInterface.php` => `Classes/Configuration/Loader/TaxClassLoaderInterface.php`
+`Classes/Service/PaymentMethodsServiceInterface.php` => `Classes/Configuration/Loader/PaymentMethodsLoaderInterface.php`
+`Classes/Service/ShippingMethodsServiceInterface.php` => `Classes/Configuration/Loader/ShippingMethodsLoaderInterface.php`
+`Classes/Service/SpecialOptionsServiceInterface.php` => `Classes/Configuration/Loader/SpecialOptionsLoaderInterface.php`
+
+The classes was moved form `Service` to `Configuration` or `Configuration/TypoScript`:
+
+`Classes/Service/CurrencyTranslationService.php` => `Classes/Configuration/Loader/CurrencyTranslationLoader.php`
+`Classes/Service/PaymentMethodsFromTypoScriptService.php` => `Classes/Configuration/Loader/TypoScript/PaymentMethodsLoader.php`
+`Classes/Service/ShippingMethodsFromTypoScriptService.php` => `Classes/Configuration/Loader/TypoScript/ShippingMethodsLoader.php`
+`Classes/Service/SpecialOptionsFromTypoScriptService.php` => `Classes/Configuration/Loader/TypoScript/SpecialOptionsLoader.php`
+`Classes/Service/TaxClassService.php` => `Classes/Configuration/Loader/TypoScript/TaxClassLoader.php`
+
+Affected Installations
+======================
+
+All installations implementing one of the service interfaces or extending one of the
+services.
+
+Migration
+=========
+
+Use interfaces from new namespace.
+
+.. CAUTION::
+   All configuration loaders are now final. If your own configuration loader only extends the
+   service, you have to copy the code from the final configuration loader class and add your
+   changes in your own class. Add or update an alias to your own configuration loader class.
diff --git a/Documentation/Changelog/12.0/Feature-752-AddLogForOrders.rst b/Documentation/Changelog/12.0/Feature-752-AddLogForOrders.rst
new file mode 100644
index 00000000..cc2e5d72
--- /dev/null
+++ b/Documentation/Changelog/12.0/Feature-752-AddLogForOrders.rst
@@ -0,0 +1,21 @@
+.. include:: ../../Includes.rst.txt
+
+===========================================
+Feature: #752 - Add LogInterface for orders
+===========================================
+
+See `Issue 752 <https://github.com/extcode/cart/issues/752>`__
+
+Description
+===========
+
+Currently there is no logging for an order. An editor can
+change the shipping status, but nobody knows, when this is
+happend.
+
+Impact
+======
+
+No direct impact.
+
+.. index:: API
diff --git a/Documentation/Changelog/12.0/Feature-756-AddSiteSetConfigurationLoader.rst b/Documentation/Changelog/12.0/Feature-756-AddSiteSetConfigurationLoader.rst
new file mode 100644
index 00000000..21ab8ee0
--- /dev/null
+++ b/Documentation/Changelog/12.0/Feature-756-AddSiteSetConfigurationLoader.rst
@@ -0,0 +1,41 @@
+.. include:: ../../Includes.rst.txt
+
+=================================================
+Feature: #756 - Add Site Set Configuration Loader
+=================================================
+
+See `Issue 756 <https://github.com/extcode/cart/issues/756>`__
+
+Description
+===========
+
+If you want to switch to the Site Sets configuration loader,
+you have to alias the new classes.
+
+You can decide to move some configuration to Site Sets and
+leave others in TypoScript
+
+.. code-block:: php
+
+    $services
+        ->alias(
+            \Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface::class,
+            \Extcode\Cart\Configuration\Loader\SiteSets\PaymentMethodsLoader::class
+        )
+    ;
+
+.. code-block:: yaml
+
+    services:
+        Extcode\Cart\Configuration\Loader\PaymentMethodsLoaderInterface:
+             alias: Extcode\Cart\Configuration\Loader\SiteSets\PaymentMethodsLoader
+
+.. NOTE::
+   Not all configurations can be moved to Site Sets with the 12.0.0 release.
+   Others will follow in the near future with a minor release.
+
+Impact
+======
+
+No direct impact.
+
diff --git a/Documentation/Changelog/12.0/Index.rst b/Documentation/Changelog/12.0/Index.rst
new file mode 100644
index 00000000..f71bf7c3
--- /dev/null
+++ b/Documentation/Changelog/12.0/Index.rst
@@ -0,0 +1,30 @@
+.. include:: ../../Includes.rst.txt
+
+12.0 Changes
+============
+
+**Table of contents**
+
+.. contents::
+   :local:
+   :depth: 1
+
+Breaking
+--------
+
+.. toctree::
+   :maxdepth: 1
+   :titlesonly:
+   :glob:
+
+   Breaking-*
+
+Features
+--------
+
+.. toctree::
+   :maxdepth: 1
+   :titlesonly:
+   :glob:
+
+   Feature-*
diff --git a/Documentation/Changelog/Index.rst b/Documentation/Changelog/Index.rst
index f4c73d9d..bc90b960 100644
--- a/Documentation/Changelog/Index.rst
+++ b/Documentation/Changelog/Index.rst
@@ -10,6 +10,7 @@ ChangeLog
    :maxdepth: 5
    :titlesonly:
 
+   12.0/Index
    11.7/Index
    11.3/Index
    11.1/Index
diff --git a/Documentation/Introduction/Index.rst b/Documentation/Introduction/Index.rst
index 20694a56..49eb4266 100644
--- a/Documentation/Introduction/Index.rst
+++ b/Documentation/Introduction/Index.rst
@@ -86,13 +86,6 @@ Examples of websites which use this extension as e-commerce solution.
 
    `www.liebman-design-import.com <https://www.liebman-design-import.com/warenkorb/>`__
 
-.. figure:: ../Images/Examples/weingut-isele.de.png
-   :width: 640
-   :alt: Cart of Weingut Isele
-   :class: with-shadow
-
-   `www.weingut-isele.de <https://www.weingut-isele.de>`__
-
 **Table of contents**
 
 .. toctree::
@@ -101,4 +94,3 @@ Examples of websites which use this extension as e-commerce solution.
 
    Support/Index
    Sponsoring/Index
-   NoteOfThanks/Index
diff --git a/Documentation/Introduction/NoteOfThanks/Index.rst b/Documentation/Introduction/NoteOfThanks/Index.rst
deleted file mode 100644
index 0d5e7181..00000000
--- a/Documentation/Introduction/NoteOfThanks/Index.rst
+++ /dev/null
@@ -1,15 +0,0 @@
-.. include:: ../../Includes.rst.txt
-
-==============
-Note of thanks
-==============
-
-A big thank you goes `Tritum GmbH <https://www.tritum.de>`__ for the many hours I was allowed to work on Cart.
-
-In particular, I would like to thank Björn. He always has an open ear. He contributed his opinion to many questions
-and decisions. Without him, Cart would not be what it is today.
-
-Another thanks goes to the testers for their feedback and understanding when I made changes to the data model again and
-again.
-
-A big thank you also goes out to all the supporters on github.
diff --git a/Documentation/Introduction/Sponsoring/Index.rst b/Documentation/Introduction/Sponsoring/Index.rst
index a2fce503..78671a83 100644
--- a/Documentation/Introduction/Sponsoring/Index.rst
+++ b/Documentation/Introduction/Sponsoring/Index.rst
@@ -9,8 +9,5 @@ If there is a feature that has not yet been implemented in Cart, you can contact
 There is also the possibility to support the further development independently of new functions.
 
 *  Ask for an invoice.
-*  `GitHub Sponsors <https://github.com/sponsors/extcode>`_
 *  `paypal.me <https://paypal.me/extcart>`_
 
-Sponsors
---------
diff --git a/Documentation/guides.xml b/Documentation/guides.xml
index 3ce88ac9..3ed5ce12 100644
--- a/Documentation/guides.xml
+++ b/Documentation/guides.xml
@@ -11,9 +11,9 @@
                interlink-shortcode="extcode/cart"
     />
     <project title="Cart"
-             release="11.7.2"
-             version="11.7"
-             copyright="2018 - 2025"
+             release="12.0.0"
+             version="12.0"
+             copyright="2018 - 2028"
     />
     <inventory id="t3tsref" url="https://docs.typo3.org/typo3cms/TyposcriptReference/"/>
 </guides>
diff --git a/README.md b/README.md
index aee99e82..603ce5fd 100644
--- a/README.md
+++ b/README.md
@@ -50,10 +50,11 @@ Sometimes minor versions also result in minor adjustments to own templates or co
 
 | Cart   | TYPO3      | PHP       | Support/Development                  |
 |--------|------------|-----------|--------------------------------------|
-| 11.x.x | 13.4       | 8.2 - 8.5 | Features, Bugfixes, Security Updates |
-| 10.x.x | 12.4       | 8.1 - 8.5 | Bugfixes, Security Updates           |
-| 9.x.x  | 12.4       | 8.1 - 8.4 | Security Updates                     |
-| 8.x.x  | 10.4, 11.5 | 7.2+      | Security Updates                     |
+| 12.x.x | 14.3       | 8.2 - 8.5 | Features, Bugfixes, Security Updates |
+| 11.x.x | 13.4       | 8.2 - 8.5 | Bugfixes, Security Updates           |
+| 10.x.x | 12.4       | 8.1 - 8.5 | Security Updates                     |
+| 9.x.x  | 12.4       | 8.1 - 8.4 |                                      |
+| 8.x.x  | 10.4, 11.5 | 7.2+      |                                      |
 | 7.x.x  | 10.4       | 7.2 - 7.4 |                                      |
 | 6.x.x  | 9.5        | 7.2 - 7.4 |                                      |
 | 5.x.x  | 8.7        | 7.0 - 7.4 |                                      |
@@ -79,7 +80,6 @@ News uses **semantic versioning** which basically means for you, that
 ## 4. Sponsoring
 
 * Ask for an invoice.
-* [GitHub Sponsors](https://github.com/sponsors/extcode)
 * [PayPal.Me](https://paypal.me/extcart)
 
 [1]: https://docs.typo3.org/typo3cms/extensions/cart/
diff --git a/Tests/Fixtures/BackendUser.php b/Tests/Fixtures/BackendUser.php
new file mode 100644
index 00000000..6578a28c
--- /dev/null
+++ b/Tests/Fixtures/BackendUser.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+return [
+    'be_users' => [
+        0 => [
+            'uid' => '1',
+            'pid' => '0',
+            'username' => 'admin',
+            'password' => '$1$tCrlLajZ$C0sikFQQ3SWaFAZ1Me0Z/1',
+            'admin' => 1,
+        ],
+    ],
+];
diff --git a/Tests/Fixtures/BaseDatabase.php b/Tests/Fixtures/BaseDatabase.php
index 8b7f86d4..03b4bac8 100644
--- a/Tests/Fixtures/BaseDatabase.php
+++ b/Tests/Fixtures/BaseDatabase.php
@@ -16,5 +16,23 @@
             'deleted' => '0',
             'is_siteroot' => '1',
         ],
+        100 => [
+            'uid' => '101',
+            'pid' => '0',
+            'title' => 'Shop',
+            'doktype' => PageRepository::DOKTYPE_SYSFOLDER,
+            'slug' => '/shop-folder',
+            'sorting' => '128',
+            'deleted' => '0',
+        ],
+        104 => [
+            'uid' => '105',
+            'pid' => '101',
+            'title' => 'Orders',
+            'doktype' => PageRepository::DOKTYPE_SYSFOLDER,
+            'slug' => '/orders-folder',
+            'sorting' => '128',
+            'deleted' => '0',
+        ],
     ],
 ];
diff --git a/Tests/Functional/Command/AbstractCommandTestCase.php b/Tests/Functional/Command/AbstractCommandTestCase.php
index 99953e37..21d184be 100644
--- a/Tests/Functional/Command/AbstractCommandTestCase.php
+++ b/Tests/Functional/Command/AbstractCommandTestCase.php
@@ -11,12 +11,16 @@
  * LICENSE file that was distributed with this source code.
  */
 
-use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use Codappix\Typo3PhpDatasets\TestingFramework;
 use TYPO3\CMS\Core\Localization\LanguageServiceFactory;
 use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
 
 abstract class AbstractCommandTestCase extends FunctionalTestCase
 {
+    use TestingFramework;
+
+    private const FORM_PROTECTION_SESSION_TOKEN = 'testtoken';
+
     protected function setUp(): void
     {
         $this->testExtensionsToLoad = [
@@ -25,28 +29,27 @@ protected function setUp(): void
 
         $this->coreExtensionsToLoad = [
             'typo3/cms-beuser',
+            'typo3/cms-core',
         ];
 
         $this->pathsToLinkInTestInstance['typo3conf/ext/cart/Tests/Functional/Fixtures/Import/Sites/'] = 'typo3conf/sites';
 
         parent::setUp();
 
-        $backendUser = self::createStub(BackendUserAuthentication::class);
-        $backendUser->method('isAdmin')->willReturn(true);
-        $backendUser->method('recordEditAccessInternals')->willReturn(true);
-        $backendUser->workspace = 0;
-        $backendUser->user = [
-            'uid' => 1,
-            'admin' => true,
-        ];
-        $GLOBALS['BE_USER'] = $backendUser;
+        $this->importPHPDataSet(__DIR__ . '/../../Fixtures/BaseDatabase.php');
+        $this->importPHPDataSet(__DIR__ . '/../../Fixtures/BackendUser.php');
+
+        $this->setUpBackendUser(1)
+            ->getSession()
+            ->set('formProtectionSessionToken', self::FORM_PROTECTION_SESSION_TOKEN)
+        ;
+
         $GLOBALS['LANG'] = $this->get(LanguageServiceFactory::class)->create('en');
     }
 
     protected function tearDown(): void
     {
         unset(
-            $GLOBALS['BE_USER'],
             $GLOBALS['LANG']
         );
 
diff --git a/Tests/Functional/Command/OrderItemCleanupCommandTest.php b/Tests/Functional/Command/OrderItemCleanupCommandTest.php
index d6c95fcd..75db2c9c 100644
--- a/Tests/Functional/Command/OrderItemCleanupCommandTest.php
+++ b/Tests/Functional/Command/OrderItemCleanupCommandTest.php
@@ -33,16 +33,16 @@ public function doesNotDeletesRecordsCreatedAfterCutOffDate(): void
         (new PhpDataSet())->import([
             'tx_cart_domain_model_order_item' => [
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2026-01-21'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2026-01-21'))->format('U'),
                 ],
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2025-01-21'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2025-01-21'))->format('U'),
                 ],
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2025-01-02'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2025-01-02'))->format('U'),
                 ],
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2025-01-01'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2025-01-01'))->format('U'),
                 ],
             ],
         ]);
@@ -67,10 +67,10 @@ public function deletesRecordsCreatedBeforeCutOffDate(): void
         (new PhpDataSet())->import([
             'tx_cart_domain_model_order_item' => [
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2024-12-31'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2024-12-31'))->format('U'),
                 ],
                 [
-                    'crdate' => (int)(new DateTimeImmutable('2024-10-12'))->format('U'),
+                    'crdate' => (new DateTimeImmutable('2024-10-12'))->format('U'),
                 ],
             ],
         ]);
@@ -94,62 +94,62 @@ public function deletesRelatedRecordsCreatedBeforeCutOffDate(): void
         (new PhpDataSet())->import([
             'tx_cart_domain_model_order_item' => [
                 [
-                    'uid' => 10,
-                    'products' => 2,
-                    'billing_address' => 1,
-                    'shipping_address' => 1,
-                    'payment' => 1,
-                    'shipping' => 1,
-                    'tax_class' => 3,
-                    'crdate' => (int)(new DateTimeImmutable('2024-12-31'))->format('U'),
+                    'uid' => '10',
+                    'products' => '2',
+                    'billing_address' => '1',
+                    'shipping_address' => '1',
+                    'payment' => '1',
+                    'shipping' => '1',
+                    'tax_class' => '3',
+                    'crdate' => (new DateTimeImmutable('2024-12-31'))->format('U'),
                 ],
             ],
             'tx_cart_domain_model_order_product' => [
                 [
-                    'uid' => 1,
-                    'item' => 10,
+                    'uid' => '1',
+                    'item' => '10',
                 ],
                 [
-                    'uid' => 2,
-                    'item' => 10,
+                    'uid' => '2',
+                    'item' => '10',
                 ],
             ],
             'tx_cart_domain_model_order_address' => [
                 [
-                    'uid' => 100,
-                    'item' => 10,
+                    'uid' => '100',
+                    'item' => '10',
                     'record_type' => '\\' . BillingAddress::class,
                 ],
                 [
-                    'uid' => 101,
-                    'item' => 10,
+                    'uid' => '101',
+                    'item' => '10',
                     'record_type' => '\\' . ShippingAddress::class,
                 ],
             ],
             'tx_cart_domain_model_order_payment' => [
                 [
-                    'uid' => 30,
-                    'item' => 10,
+                    'uid' => '30',
+                    'item' => '10',
                 ],
             ],
             'tx_cart_domain_model_order_shipping' => [
                 [
-                    'uid' => 30,
-                    'item' => 10,
+                    'uid' => '30',
+                    'item' => '10',
                 ],
             ],
             'tx_cart_domain_model_order_taxclass' => [
                 [
-                    'uid' => 30,
-                    'item' => 10,
+                    'uid' => '30',
+                    'item' => '10',
                 ],
                 [
-                    'uid' => 31,
-                    'item' => 10,
+                    'uid' => '31',
+                    'item' => '10',
                 ],
                 [
-                    'uid' => 32,
-                    'item' => 10,
+                    'uid' => '32',
+                    'item' => '10',
                 ],
             ],
         ]);
@@ -186,78 +186,78 @@ public function doesNotDeletesNotRelatedRecordsCreatedBeforeCutOffDate(): void
         (new PhpDataSet())->import([
             'tx_cart_domain_model_order_item' => [
                 [
-                    'uid' => 10,
-                    'products' => 2,
-                    'billing_address' => 1,
-                    'shipping_address' => 1,
-                    'payment' => 1,
-                    'shipping' => 1,
-                    'tax_class' => 3,
-                    'crdate' => (int)(new DateTimeImmutable('2024-12-31'))->format('U'),
+                    'uid' => '10',
+                    'products' => '2',
+                    'billing_address' => '1',
+                    'shipping_address' => '1',
+                    'payment' => '1',
+                    'shipping' => '1',
+                    'tax_class' => '3',
+                    'crdate' => (new DateTimeImmutable('2024-12-31'))->format('U'),
                 ],
             ],
             'tx_cart_domain_model_order_product' => [
                 [
-                    'uid' => 1,
-                    'item' => 9,
+                    'uid' => '1',
+                    'item' => '9',
                 ],
                 [
-                    'uid' => 2,
-                    'item' => 11,
+                    'uid' => '2',
+                    'item' => '11',
                 ],
             ],
             'tx_cart_domain_model_order_address' => [
                 [
-                    'item' => 9,
+                    'item' => '9',
                     'record_type' => '\\' . BillingAddress::class,
                 ],
                 [
-                    'item' => 9,
+                    'item' => '9',
                     'record_type' => '\\' . ShippingAddress::class,
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                     'record_type' => '\\' . BillingAddress::class,
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                     'record_type' => '\\' . ShippingAddress::class,
                 ],
             ],
             'tx_cart_domain_model_order_payment' => [
                 [
-                    'item' => 9,
+                    'item' => '9',
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                 ],
             ],
             'tx_cart_domain_model_order_shipping' => [
                 [
-                    'item' => 9,
+                    'item' => '9',
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                 ],
             ],
             'tx_cart_domain_model_order_taxclass' => [
                 [
-                    'item' => 9,
+                    'item' => '9',
                 ],
                 [
-                    'item' => 9,
+                    'item' => '9',
                 ],
                 [
-                    'item' => 9,
+                    'item' => '9',
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                 ],
                 [
-                    'item' => 11,
+                    'item' => '11',
                 ],
             ],
         ]);
@@ -324,14 +324,14 @@ public function wrongCutOffDateFormatTerminatesTheCommandWithErrorMessage(
         );
     }
 
-    public static function wrongCutOffDateDataProvider()
+    public static function wrongCutOffDateDataProvider(): iterable
     {
-        yield [ '01-01-2025' ];
-        yield [ '01.01.2025' ];
-        yield [ '01. Jan. 2025' ];
-        yield [ 'first day of month' ];
-        yield [ '1767265200' ];
-        yield [ 'Thu Jan 01 2026 11:00:00 GMT+0000' ];
-        yield [ 1 ];
+        yield ['01-01-2025'];
+        yield ['01.01.2025'];
+        yield ['01. Jan. 2025'];
+        yield ['first day of month'];
+        yield ['1767265200'];
+        yield ['Thu Jan 01 2026 11:00:00 GMT+0000'];
+        yield [1];
     }
 }
diff --git a/Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php b/Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php
index e7037257..8442521c 100644
--- a/Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php
+++ b/Tests/Functional/EventListener/Mail/AttachmentFromOrderItemTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Functional\EventListener\Mail;
 
 /*
@@ -22,15 +24,23 @@ class AttachmentFromOrderItemTest extends FunctionalTestCase
 {
     use TestingFramework;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->testExtensionsToLoad[] = 'extcode/cart';
-        $this->testExtensionsToLoad[] = 'typo3conf/ext/cart/Tests/Fixtures/cart_example';
+        $this->testExtensionsToLoad = [
+            'extcode/cart',
+            'typo3conf/ext/cart/Tests/Fixtures/cart_example',
+        ];
+
+        $this->coreExtensionsToLoad = [
+            'typo3/cms-beuser',
+            'typo3/cms-core',
+        ];
 
         parent::setUp();
 
         $GLOBALS['TYPO3_REQUEST'] = (new ServerRequest())
-            ->withAttribute('applicationType', SystemEnvironmentBuilder::REQUESTTYPE_BE);
+            ->withAttribute('applicationType', SystemEnvironmentBuilder::REQUESTTYPE_BE)
+        ;
 
         $this->importPHPDataSet(__DIR__ . '/../../../Fixtures/BaseDatabase.php');
     }
diff --git a/Tests/Functional/EventListener/Mail/AttachmentFromTypoScriptTest.php b/Tests/Functional/EventListener/Mail/AttachmentFromTypoScriptTest.php
index 2f971431..1090b5fb 100644
--- a/Tests/Functional/EventListener/Mail/AttachmentFromTypoScriptTest.php
+++ b/Tests/Functional/EventListener/Mail/AttachmentFromTypoScriptTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Functional\EventListener\Mail;
 
 /*
@@ -13,6 +15,7 @@
 use Extcode\Cart\Event\Mail\AttachmentEvent;
 use Extcode\Cart\EventListener\Mail\AttachmentFromTypoScript;
 use PHPUnit\Framework\Attributes\Test;
+use ReflectionClass;
 use TYPO3\CMS\Core\Core\SystemEnvironmentBuilder;
 use TYPO3\CMS\Core\EventDispatcher\ListenerProvider;
 use TYPO3\CMS\Core\Http\ServerRequest;
@@ -24,15 +27,23 @@ class AttachmentFromTypoScriptTest extends FunctionalTestCase
 {
     use TestingFramework;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->testExtensionsToLoad[] = 'extcode/cart';
-        $this->testExtensionsToLoad[] = 'typo3conf/ext/cart/Tests/Fixtures/cart_example';
+        $this->testExtensionsToLoad = [
+            'extcode/cart',
+            'typo3conf/ext/cart/Tests/Fixtures/cart_example',
+        ];
+
+        $this->coreExtensionsToLoad = [
+            'typo3/cms-beuser',
+            'typo3/cms-core',
+        ];
 
         parent::setUp();
 
         $GLOBALS['TYPO3_REQUEST'] = (new ServerRequest())
-            ->withAttribute('applicationType', SystemEnvironmentBuilder::REQUESTTYPE_BE);
+            ->withAttribute('applicationType', SystemEnvironmentBuilder::REQUESTTYPE_BE)
+        ;
 
         $this->importPHPDataSet(__DIR__ . '/../../../Fixtures/BaseDatabase.php');
     }
@@ -72,7 +83,7 @@ public function filesFromTypoScriptAddedToAttachmentList(): void
             ],
         ];
 
-        $reflection = new \ReflectionClass($attachmentFromTypoScriot);
+        $reflection = new ReflectionClass($attachmentFromTypoScriot);
         $reflection_property = $reflection->getProperty('settings');
         $reflection_property->setValue($attachmentFromTypoScriot, $settings);
 
@@ -80,7 +91,7 @@ public function filesFromTypoScriptAddedToAttachmentList(): void
 
         $attachments = $attachmentEvent->getAttachments();
 
-        self::assertSame(2, count($attachments));
+        self::assertCount(2, $attachments);
         self::assertContains(GeneralUtility::getFileAbsFileName('EXT:cart_example/Resources/Public/Files/Extension.pdf'), $attachments);
         self::assertContains(GeneralUtility::getFileAbsFileName('EXT:cart_example/Resources/Public/Icons/Extension.svg'), $attachments);
     }
diff --git a/Tests/Functional/Service/MailHandlerTest.php b/Tests/Functional/Service/MailHandlerTest.php
new file mode 100644
index 00000000..49193f61
--- /dev/null
+++ b/Tests/Functional/Service/MailHandlerTest.php
@@ -0,0 +1,392 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Functional\Service;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Codappix\Typo3PhpDatasets\TestingFramework;
+use Exception;
+use Extcode\Cart\Domain\Log\DatabaseWriter;
+use Extcode\Cart\Domain\Log\LogService;
+use Extcode\Cart\Domain\Model\Order\BillingAddress;
+use Extcode\Cart\Domain\Model\Order\Item as OrderItem;
+use Extcode\Cart\Domain\Model\Order\Payment;
+use Extcode\Cart\Service\MailHandler;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\MockObject\MockBuilder;
+use PHPUnit\Framework\MockObject\Stub;
+use Psr\EventDispatcher\EventDispatcherInterface;
+use TYPO3\CMS\Core\Log\LogLevel;
+use TYPO3\CMS\Core\Log\LogManager;
+use TYPO3\CMS\Core\Mail\MailerInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
+use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
+
+class MailHandlerTest extends FunctionalTestCase
+{
+    use TestingFramework;
+
+    protected function setUp(): void
+    {
+        $this->testExtensionsToLoad = [
+            'extcode/cart',
+            'typo3conf/ext/cart/Tests/Fixtures/cart_example',
+        ];
+
+        $this->coreExtensionsToLoad = [
+            'typo3/cms-beuser',
+            'typo3/cms-core',
+        ];
+
+        $this->configurationToUseInTestInstance = [
+            'LOG' => [
+                'Extcode' => [
+                    'Cart' => [
+                        'Tests' => [
+                            'writerConfiguration' => [
+                                LogLevel::INFO => [
+                                    DatabaseWriter::class => [],
+                                ],
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+        ];
+
+        parent::setUp();
+
+        $this->importPHPDataSet(__DIR__ . '/../../Fixtures/BaseDatabase.php');
+    }
+
+    #[Test]
+    public function logSucessAfterEmailToBuyerWasSend(): void
+    {
+        $mockBuilder = $this->getMockBuilderForMailHandlerClass();
+        $mockBuilder->onlyMethods(
+            [
+                'getBuyerEmailFrom',
+                'getBuyerEmailName',
+            ]
+        );
+        $mailHandler = $mockBuilder->getMock();
+        $mailHandler->method('getBuyerEmailFrom')->willReturn('buyerEmailFrom@example.com');
+        $mailHandler->method('getBuyerEmailName')->willReturn('Buyer Email Name');
+
+        $mailHandler->sendBuyerMail(
+            self::createStubForOrderItem()
+        );
+
+        $logEntries = $this->getAllRecords('tx_cart_domain_model_order_log');
+        self::assertCount(
+            1,
+            $logEntries
+        );
+        self::assertIsArray($logEntries[0]);
+
+        self::assertArrayIsEqualToArrayIgnoringListOfKeys(
+            [
+                'log_level' => 'info',
+                'item' => 142,
+                'type' => 'sendBuyerMail',
+                'message' => 'Mail was send to buyer.',
+                'level' => 'info',
+            ],
+            $logEntries[0],
+            [
+                'uid',
+                'request_id',
+                'crdate',
+                'time_micro',
+                'data',
+                'arguments',
+            ]
+        );
+
+        self::assertIsString(
+            $logEntries[0]['arguments']
+        );
+        $arguments = json_decode(
+            ltrim($logEntries[0]['arguments'], '- '),
+            true
+        );
+        self::assertIsArray(
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'time',
+            $arguments
+        );
+    }
+
+    #[Test]
+    public function logErrorIfEmailToBuyerCouldNotSend(): void
+    {
+        $mockBuilder = $this->getMockBuilderForMailHandlerClass(mailerThrowException: true);
+        $mockBuilder->onlyMethods(
+            [
+                'getBuyerEmailFrom',
+                'getBuyerEmailName',
+            ]
+        );
+        $mailHandler = $mockBuilder->getMock();
+        $mailHandler->method('getBuyerEmailFrom')->willReturn('buyerEmailFrom@example.com');
+        $mailHandler->method('getBuyerEmailName')->willReturn('Buyer Email Name');
+
+        $mailHandler->sendBuyerMail(
+            self::createStubForOrderItem()
+        );
+
+        $logEntries = $this->getAllRecords('tx_cart_domain_model_order_log');
+        self::assertCount(
+            1,
+            $logEntries
+        );
+        self::assertIsArray($logEntries[0]);
+
+        self::assertArrayIsEqualToArrayIgnoringListOfKeys(
+            [
+                'log_level' => 'error',
+                'item' => 142,
+                'type' => 'sendBuyerMail',
+                'message' => 'Mail could not send to buyer.',
+                'level' => 'error',
+            ],
+            $logEntries[0],
+            [
+                'uid',
+                'request_id',
+                'crdate',
+                'time_micro',
+                'data',
+                'arguments',
+            ]
+        );
+
+        self::assertIsString(
+            $logEntries[0]['arguments']
+        );
+        $arguments = json_decode(
+            ltrim($logEntries[0]['arguments'], '- '),
+            true
+        );
+        self::assertIsArray(
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'time',
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'exception',
+            $arguments
+        );
+        self::assertIsString(
+            $arguments['exception']
+        );
+        self::assertStringStartsWith(
+            'Exception in ',
+            $arguments['exception']
+        );
+        self::assertStringContainsString(
+            '/cart/Tests/Functional/Service/MailHandlerTest.php',
+            $arguments['exception']
+        );
+    }
+
+    #[Test]
+    public function logSucessAfterEmailToSellerWasSend(): void
+    {
+        $mockBuilder = $this->getMockBuilderForMailHandlerClass();
+        $mockBuilder->onlyMethods(
+            [
+                'getSellerEmailTo',
+                'getSellerEmailFrom',
+                'getSellerEmailName',
+            ]
+        );
+        $mailHandler = $mockBuilder->getMock();
+        $mailHandler->method('getSellerEmailTo')->willReturn('sellerEmailTo@example.com');
+        $mailHandler->method('getSellerEmailFrom')->willReturn('sellerEmailFrom@example.com');
+        $mailHandler->method('getSellerEmailName')->willReturn('Seller Email Name');
+
+        $mailHandler->sendSellerMail(
+            self::createStubForOrderItem()
+        );
+
+        $logEntries = $this->getAllRecords('tx_cart_domain_model_order_log');
+        self::assertCount(
+            1,
+            $logEntries
+        );
+        self::assertIsArray($logEntries[0]);
+
+        self::assertArrayIsEqualToArrayIgnoringListOfKeys(
+            [
+                'log_level' => 'info',
+                'item' => 142,
+                'type' => 'sendSellerMail',
+                'message' => 'Mail was send to seller.',
+                'level' => 'info',
+            ],
+            $logEntries[0],
+            [
+                'uid',
+                'request_id',
+                'crdate',
+                'time_micro',
+                'data',
+                'arguments',
+            ]
+        );
+
+        self::assertIsString(
+            $logEntries[0]['arguments']
+        );
+        $arguments = json_decode(
+            ltrim($logEntries[0]['arguments'], '- '),
+            true
+        );
+        self::assertIsArray(
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'time',
+            $arguments
+        );
+    }
+
+    #[Test]
+    public function logErrorIfEmailToSellerCouldNotSend(): void
+    {
+        $mockBuilder = $this->getMockBuilderForMailHandlerClass(mailerThrowException: true);
+        $mockBuilder->onlyMethods(
+            [
+                'getSellerEmailTo',
+                'getSellerEmailFrom',
+                'getSellerEmailName',
+            ]
+        );
+        $mailHandler = $mockBuilder->getMock();
+        $mailHandler->method('getSellerEmailTo')->willReturn('sellerEmailTo@example.com');
+        $mailHandler->method('getSellerEmailFrom')->willReturn('sellerEmailFrom@example.com');
+        $mailHandler->method('getSellerEmailName')->willReturn('Seller Email Name');
+
+        $mailHandler->sendSellerMail(
+            self::createStubForOrderItem()
+        );
+
+        $logEntries = $this->getAllRecords('tx_cart_domain_model_order_log');
+        self::assertCount(
+            1,
+            $logEntries
+        );
+        self::assertIsArray($logEntries[0]);
+
+        self::assertArrayIsEqualToArrayIgnoringListOfKeys(
+            [
+                'log_level' => 'error',
+                'item' => 142,
+                'type' => 'sendSellerMail',
+                'message' => 'Mail could not send to seller.',
+                'level' => 'error',
+            ],
+            $logEntries[0],
+            [
+                'uid',
+                'request_id',
+                'crdate',
+                'time_micro',
+                'data',
+                'arguments',
+            ]
+        );
+
+        self::assertIsString(
+            $logEntries[0]['arguments']
+        );
+        $arguments = json_decode(
+            ltrim($logEntries[0]['arguments'], '- '),
+            true
+        );
+        self::assertIsArray(
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'time',
+            $arguments
+        );
+        self::assertArrayHasKey(
+            'exception',
+            $arguments
+        );
+        self::assertIsString(
+            $arguments['exception']
+        );
+        self::assertStringStartsWith(
+            'Exception in ',
+            $arguments['exception']
+        );
+        self::assertStringContainsString(
+            '/cart/Tests/Functional/Service/MailHandlerTest.php',
+            $arguments['exception']
+        );
+    }
+
+    /**
+     * @return MockBuilder<MailHandler>
+     */
+    private function getMockBuilderForMailHandlerClass(bool $mailerThrowException = false): MockBuilder
+    {
+        $configurationManager = self::createStub(ConfigurationManagerInterface::class);
+
+        $eventDispatcher = self::createStub(EventDispatcherInterface::class);
+
+        $mailer = self::createStub(MailerInterface::class);
+        if ($mailerThrowException) {
+            $mailer->method('send')->willThrowException(new Exception());
+        }
+
+        $logger = GeneralUtility::makeInstance(LogManager::class)->getLogger(self::class);
+        $logService = GeneralUtility::makeInstance(
+            LogService::class,
+            $logger,
+        );
+
+        $mockBuilder = $this->getMockBuilder(MailHandler::class);
+        $mockBuilder->setConstructorArgs(
+            [
+                $configurationManager,
+                $eventDispatcher,
+                $mailer,
+                $logService,
+            ]
+        );
+
+        return $mockBuilder;
+    }
+
+    private static function createStubForOrderItem(): OrderItem&Stub
+    {
+        $billingAddress = self::createStub(BillingAddress::class);
+        $billingAddress->method('getEmail')->willReturn('billingAddress@example.com');
+
+        $payment = self::createStub(Payment::class);
+        $payment->method('getStatus')->willReturn('open');
+
+        $orderItem = self::createStub(OrderItem::class);
+        $orderItem->method('getBillingAddress')->willReturn($billingAddress);
+        $orderItem->method('getPayment')->willReturn($payment);
+        $orderItem->method('getUid')->willReturn(142);
+
+        return $orderItem;
+    }
+}
diff --git a/Tests/Functional/ViewHelpers/CsvHeaderViewHelperTest.php b/Tests/Functional/ViewHelpers/CsvHeaderViewHelperTest.php
index fce4bbd8..9216366e 100644
--- a/Tests/Functional/ViewHelpers/CsvHeaderViewHelperTest.php
+++ b/Tests/Functional/ViewHelpers/CsvHeaderViewHelperTest.php
@@ -23,9 +23,16 @@ final class CsvHeaderViewHelperTest extends FunctionalTestCase
 {
     use TestingFramework;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->testExtensionsToLoad[] = 'extcode/cart';
+        $this->testExtensionsToLoad = [
+            'extcode/cart',
+        ];
+
+        $this->coreExtensionsToLoad = [
+            'typo3/cms-beuser',
+            'typo3/cms-core',
+        ];
 
         parent::setUp();
     }
@@ -34,7 +41,7 @@ public function setUp(): void
     public function headerExportsToCsvLine(): void
     {
         $template = __DIR__ . '/Fixtures/CsvHeader.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $content = $view->render();
 
         self::assertSame(
@@ -47,7 +54,7 @@ public function headerExportsToCsvLine(): void
     public function headerExportsToCsvLineWithDifferentDelimAndQuote(): void
     {
         $template = __DIR__ . '/Fixtures/CsvHeaderWithDifferentDelimAndQuote.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $content = $view->render();
 
         self::assertSame(
@@ -56,7 +63,7 @@ public function headerExportsToCsvLineWithDifferentDelimAndQuote(): void
         );
     }
 
-    private function getView(string $template): ViewInterface
+    private static function getView(string $template): ViewInterface
     {
         $viewFactory = GeneralUtility::makeInstance(ViewFactoryInterface::class);
         return $viewFactory->create(new ViewFactoryData(null, null, null, $template));
diff --git a/Tests/Functional/ViewHelpers/CsvValuesViewHelperTest.php b/Tests/Functional/ViewHelpers/CsvValuesViewHelperTest.php
index 9ccb78f9..f1bc408d 100644
--- a/Tests/Functional/ViewHelpers/CsvValuesViewHelperTest.php
+++ b/Tests/Functional/ViewHelpers/CsvValuesViewHelperTest.php
@@ -27,9 +27,16 @@ final class CsvValuesViewHelperTest extends FunctionalTestCase
 
     private ItemRepository $itemRepository;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->testExtensionsToLoad[] = 'extcode/cart';
+        $this->testExtensionsToLoad = [
+            'extcode/cart',
+        ];
+
+        $this->coreExtensionsToLoad = [
+            'typo3/cms-beuser',
+            'typo3/cms-core',
+        ];
 
         parent::setUp();
 
@@ -49,7 +56,7 @@ public function orderWithEmptyOrderDataWithEmptyAddressDataExportsToCsvLine(): v
         $orderItem = $this->itemRepository->findByUid(10);
 
         $template = __DIR__ . '/Fixtures/CsvValues.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $view->assign('orderItem', $orderItem);
         $content = $view->render();
 
@@ -65,7 +72,7 @@ public function orderWithOrderDataAndWithAddressExportsToCsvLine(): void
         $orderItem = $this->itemRepository->findByUid(11);
 
         $template = __DIR__ . '/Fixtures/CsvValues.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $view->assign('orderItem', $orderItem);
         $content = $view->render();
 
@@ -81,7 +88,7 @@ public function orderWithOrderDataAndWithAddressExportsToCsvLineWithDifferentDel
         $orderItem = $this->itemRepository->findByUid(11);
 
         $template = __DIR__ . '/Fixtures/CsvValuesWithDifferentDelimAndQuote.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $view->assign('orderItem', $orderItem);
         $content = $view->render();
 
@@ -97,7 +104,7 @@ public function orderWithOrderDataAndWithoutAddressExportsToCsvLine(): void
         $orderItem = $this->itemRepository->findByUid(12);
 
         $template = __DIR__ . '/Fixtures/CsvValues.html';
-        $view = $this->getView($template);
+        $view = self::getView($template);
         $view->assign('orderItem', $orderItem);
         $content = $view->render();
 
@@ -107,7 +114,7 @@ public function orderWithOrderDataAndWithoutAddressExportsToCsvLine(): void
         );
     }
 
-    private function getView(string $template): ViewInterface
+    private static function getView(string $template): ViewInterface
     {
         $viewFactory = GeneralUtility::makeInstance(ViewFactoryInterface::class);
         return $viewFactory->create(new ViewFactoryData(null, null, null, $template));
diff --git a/Tests/ObjectAccess.php b/Tests/ObjectAccess.php
new file mode 100644
index 00000000..136206cc
--- /dev/null
+++ b/Tests/ObjectAccess.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use ReflectionProperty;
+
+class ObjectAccess
+{
+    public static function setProperty(object $instance, string $propertyName, mixed $value): void
+    {
+        $reflection = new ReflectionProperty($instance::class, $propertyName);
+        $reflection->setValue($instance, $value);
+    }
+
+    public static function getProperty(object $instance, string $propertyName): mixed
+    {
+        $reflection = new ReflectionProperty($instance::class, $propertyName);
+        return $reflection->getValue($instance);
+    }
+}
diff --git a/Tests/Unit/Service/AbstractConfigurationFromTypoScriptServiceTest.php b/Tests/Unit/Configuration/Loader/TypoScript/AbstractConfigurationLoaderTest.php
similarity index 88%
rename from Tests/Unit/Service/AbstractConfigurationFromTypoScriptServiceTest.php
rename to Tests/Unit/Configuration/Loader/TypoScript/AbstractConfigurationLoaderTest.php
index 25a0c5eb..c43844e9 100644
--- a/Tests/Unit/Service/AbstractConfigurationFromTypoScriptServiceTest.php
+++ b/Tests/Unit/Configuration/Loader/TypoScript/AbstractConfigurationLoaderTest.php
@@ -1,6 +1,8 @@
 <?php
 
-namespace Extcode\Cart\Tests\Unit\Service;
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -9,15 +11,15 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\TypoScript\AbstractConfigurationLoader;
 use Extcode\Cart\Domain\Model\Cart\ServiceFactory;
-use Extcode\Cart\Service\AbstractConfigurationFromTypoScriptService;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
 
-#[CoversClass(AbstractConfigurationFromTypoScriptService::class)]
-class AbstractConfigurationFromTypoScriptServiceTest extends UnitTestCase
+#[CoversClass(AbstractConfigurationLoader::class)]
+class AbstractConfigurationLoaderTest extends UnitTestCase
 {
     #[Test]
     public function getTypePluginSettingsReturnsTypeCountrySettings(): void
@@ -78,7 +80,7 @@ public function getTypePluginSettingsReturnsTypeCountrySettings(): void
             ],
         ];
 
-        $paymentMethodsService = $this->createSubject($configurations);
+        $paymentMethodsService = self::createSubject($configurations);
 
         $parsedData = $paymentMethodsService->getConfigurationsForType($type, $country);
 
@@ -86,9 +88,9 @@ public function getTypePluginSettingsReturnsTypeCountrySettings(): void
             $parsedData
         );
 
-        self::assertEquals(
+        self::assertCount(
             2,
-            count($parsedData)
+            $parsedData
         );
 
         self::assertEquals(
@@ -159,7 +161,7 @@ public function getTypeZonePluginSettingsReturnsTypeZoneSettings(): void
             ],
         ];
 
-        $paymentMethodsService = $this->createSubject($configurations);
+        $paymentMethodsService = self::createSubject($configurations);
 
         $parsedData = $paymentMethodsService->getConfigurationsForType($type, $country);
 
@@ -167,9 +169,9 @@ public function getTypeZonePluginSettingsReturnsTypeZoneSettings(): void
             $parsedData
         );
 
-        self::assertEquals(
+        self::assertCount(
             3,
-            count($parsedData)
+            $parsedData
         );
 
         self::assertEquals(
@@ -178,11 +180,15 @@ public function getTypeZonePluginSettingsReturnsTypeZoneSettings(): void
         );
     }
 
-    private function createSubject(array $configurations)
+    private static function createSubject(array $configurations): AbstractConfigurationLoader
     {
         $configurationManager = self::createStub(ConfigurationManagerInterface::class);
         $configurationManager->method('getConfiguration')->willReturn($configurations);
 
-        return new class ($configurationManager, new ServiceFactory()) extends AbstractConfigurationFromTypoScriptService {};
+        return new TestConfigurationLoader($configurationManager, new ServiceFactory());
     }
 }
+
+readonly class TestConfigurationLoader extends AbstractConfigurationLoader
+{
+}
diff --git a/Tests/Unit/Service/TaxClassServiceTest.php b/Tests/Unit/Configuration/Loader/TypoScript/TaxClassLoaderTest.php
similarity index 87%
rename from Tests/Unit/Service/TaxClassServiceTest.php
rename to Tests/Unit/Configuration/Loader/TypoScript/TaxClassLoaderTest.php
index 80996f99..bfbb58b9 100644
--- a/Tests/Unit/Service/TaxClassServiceTest.php
+++ b/Tests/Unit/Configuration/Loader/TypoScript/TaxClassLoaderTest.php
@@ -1,6 +1,8 @@
 <?php
 
-namespace Extcode\Cart\Tests\Unit\Service;
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Configuration\Loader\TypoScript;
 
 /*
  * This file is part of the package extcode/cart.
@@ -9,17 +11,17 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\TypoScript\TaxClassLoader;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
 use Extcode\Cart\Domain\Model\Cart\TaxClassFactory;
-use Extcode\Cart\Service\TaxClassService;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use Psr\Log\LoggerInterface;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
 
-#[CoversClass(TaxClassService::class)]
-class TaxClassServiceTest extends UnitTestCase
+#[CoversClass(TaxClassLoader::class)]
+class TaxClassLoaderTest extends UnitTestCase
 {
     #[Test]
     public function parsingTaxClassesFromTypoScriptWithoutCountryCodeReturnsDirectlyConfiguredArrayOfTaxClasses(): void
@@ -46,18 +48,16 @@ public function parsingTaxClassesFromTypoScriptWithoutCountryCodeReturnsDirectly
 
         $countryCode = '';
 
-        $taxClasses = $this->createSubject($settings)->getTaxClasses($countryCode);
+        $taxClasses = self::createSubject($settings)->getTaxClasses($countryCode);
 
-        self::assertIsArray(
-            $taxClasses
-        );
-
-        self::assertEquals(
+        self::assertCount(
             3,
-            count($taxClasses)
+            $taxClasses
         );
 
         $firstTaxClasses = $taxClasses[1];
+
+        // @phpstan-ignore-next-line staticMethod.alreadyNarrowedType
         self::assertInstanceOf(
             TaxClass::class,
             $firstTaxClasses
@@ -113,18 +113,16 @@ public function parsingTaxClassesFromTypoScriptWithCountryCodeReturnsCountrySpec
 
         $countryCode = 'AT';
 
-        $taxClasses = $this->createSubject($settings)->getTaxClasses($countryCode);
-
-        self::assertIsArray(
-            $taxClasses
-        );
+        $taxClasses = self::createSubject($settings)->getTaxClasses($countryCode);
 
-        self::assertEquals(
+        self::assertCount(
             3,
-            count($taxClasses)
+            $taxClasses
         );
 
         $firstTaxClasses = $taxClasses[1];
+
+        // @phpstan-ignore-next-line staticMethod.alreadyNarrowedType
         self::assertInstanceOf(
             TaxClass::class,
             $firstTaxClasses
@@ -197,18 +195,16 @@ public function parsingTaxClassesFromTypoScriptWithNotConfiguredCountryCodeRetur
 
         $countryCode = 'CH';
 
-        $taxClasses = $this->createSubject($settings)->getTaxClasses($countryCode);
+        $taxClasses = self::createSubject($settings)->getTaxClasses($countryCode);
 
-        self::assertIsArray(
-            $taxClasses
-        );
-
-        self::assertEquals(
+        self::assertCount(
             3,
-            count($taxClasses)
+            $taxClasses
         );
 
         $firstTaxClasses = $taxClasses[1];
+
+        // @phpstan-ignore-next-line staticMethod.alreadyNarrowedType
         self::assertInstanceOf(
             TaxClass::class,
             $firstTaxClasses
@@ -233,7 +229,7 @@ public function parsingTaxClassesFromTypoScriptWithIntegerZeroAsCalcIsValid(): v
             ],
         ];
 
-        $taxClasses = $this->createSubject($settings)->getTaxClasses();
+        $taxClasses = self::createSubject($settings)->getTaxClasses();
 
         self::assertEquals(
             $taxClasses[1]->getCalc(),
@@ -241,12 +237,12 @@ public function parsingTaxClassesFromTypoScriptWithIntegerZeroAsCalcIsValid(): v
         );
     }
 
-    private function createSubject(array $settings): TaxClassService
+    private static function createSubject(array $settings): TaxClassLoader
     {
         $configurationManager = self::createStub(ConfigurationManagerInterface::class);
         $configurationManager->method('getConfiguration')->willReturn($settings);
 
-        return new TaxClassService(
+        return new TaxClassLoader(
             $configurationManager,
             new TaxClassFactory(
                 self::createStub(LoggerInterface::class)
diff --git a/Tests/Unit/ConstantsTest.php b/Tests/Unit/ConstantsTest.php
index 8b62ae99..4cd3dc84 100644
--- a/Tests/Unit/ConstantsTest.php
+++ b/Tests/Unit/ConstantsTest.php
@@ -2,16 +2,9 @@
 
 declare(strict_types=1);
 
-/*
- * This file is part of the package extcode/cart.
- *
- * For the full copyright and license information, please read the
- * LICENSE file that was distributed with this source code.
- */
-
 namespace Extcode\Cart\Tests\Unit;
 
-use Extcode\Cart\Constants;
+use Extcode\Cart\Configuration\Constants;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
diff --git a/Tests/Unit/Controller/ProductControllerTest.php b/Tests/Unit/Controller/ProductControllerTest.php
index b1b5f5b0..fa856c0d 100644
--- a/Tests/Unit/Controller/ProductControllerTest.php
+++ b/Tests/Unit/Controller/ProductControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Controller;
 
 /*
@@ -13,7 +15,7 @@
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\Attributes\Test;
-use Traversable;
+use ReflectionClass;
 use TYPO3\CMS\Core\Messaging\FlashMessage;
 use TYPO3\CMS\Core\Type\ContextualFeedbackSeverity;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
@@ -28,7 +30,7 @@ public function getHighestSeverity(array $errors, ContextualFeedbackSeverity $ex
     {
         $productController = GeneralUtility::makeInstance(ProductController::class);
 
-        $reflection = new \ReflectionClass(ProductController::class);
+        $reflection = new ReflectionClass(ProductController::class);
         $method = $reflection->getMethod('getErrorWithHighestSeverity');
         $error = $method->invoke($productController, $errors);
 
@@ -38,7 +40,7 @@ public function getHighestSeverity(array $errors, ContextualFeedbackSeverity $ex
         );
     }
 
-    public static function getHighestSeverityDataProvider(): Traversable
+    public static function getHighestSeverityDataProvider(): iterable
     {
         yield [
             'errors' => [
@@ -113,7 +115,7 @@ public function getLastHighestSeverity(array $errors, ContextualFeedbackSeverity
     {
         $productController = GeneralUtility::makeInstance(ProductController::class);
 
-        $reflection = new \ReflectionClass(ProductController::class);
+        $reflection = new ReflectionClass(ProductController::class);
         $method = $reflection->getMethod('getErrorWithHighestSeverity');
         $error = $method->invoke($productController, $errors);
 
@@ -133,7 +135,7 @@ public function getLastHighestSeverity(array $errors, ContextualFeedbackSeverity
         );
     }
 
-    public static function getLastHighestSeverityDataProvider(): Traversable
+    public static function getLastHighestSeverityDataProvider(): iterable
     {
         yield [
             'errors' => [
@@ -199,5 +201,4 @@ public static function getLastHighestSeverityDataProvider(): Traversable
             'expectedMessage' => 'ERROR 2',
         ];
     }
-
 }
diff --git a/Tests/Unit/Domain/Model/Cart/BeVariantTest.php b/Tests/Unit/Domain/Model/Cart/BeVariantTest.php
index b1a267e3..eab8991c 100644
--- a/Tests/Unit/Domain/Model/Cart/BeVariantTest.php
+++ b/Tests/Unit/Domain/Model/Cart/BeVariantTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -17,20 +19,15 @@
 use Extcode\Cart\Domain\Model\Cart\ProductFactoryInterface;
 use Extcode\Cart\Domain\Model\Cart\ProductInterface;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
+use InvalidArgumentException;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
-use PHPUnit\Framework\MockObject\MockObject;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\TestingFramework\Core\AccessibleObjectInterface;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
 
 #[CoversClass(BeVariant::class)]
 class BeVariantTest extends UnitTestCase
 {
-    private ProductFactoryInterface $productFactory;
-
-    private BeVariantFactoryInterface $beVariantFactory;
-
     protected TaxClass $taxClass;
 
     protected ProductInterface $product;
@@ -49,7 +46,11 @@ class BeVariantTest extends UnitTestCase
 
     protected int $quantity;
 
-    public function setUp(): void
+    private ProductFactoryInterface $productFactory;
+
+    private BeVariantFactoryInterface $beVariantFactory;
+
+    protected function setUp(): void
     {
         parent::setUp();
 
@@ -162,54 +163,6 @@ public function getQuantityReturnsQuantitySetByConstructor(): void
         );
     }
 
-    #[Test]
-    public function constructWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->beVariantFactory->create(
-            1,
-            $this->product,
-            null,
-            'test-variant-sku',
-            0,
-            1.0,
-            1
-        );
-    }
-
-    #[Test]
-    public function constructWithoutSkuThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->beVariantFactory->create(
-            1,
-            $this->product,
-            'Test Variant',
-            null,
-            0,
-            1.0,
-            1
-        );
-    }
-
-    #[Test]
-    public function constructWithoutQuantityThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->beVariantFactory->create(
-            1,
-            $this->product,
-            'Test Variant',
-            'test-variant-sku',
-            0,
-            1.0,
-            null
-        );
-    }
-
     #[Test]
     public function getMinReturnsInitialValueMin(): void
     {
@@ -252,7 +205,7 @@ public function setMinIfMinIsLesserThanMax(): void
     #[Test]
     public function throwsInvalidArgumentExceptionIfMinIsGreaterThanMax(): void
     {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(InvalidArgumentException::class);
 
         $min = 2;
         $max = 1;
@@ -264,7 +217,7 @@ public function throwsInvalidArgumentExceptionIfMinIsGreaterThanMax(): void
     #[Test]
     public function throwsInvalidArgumentExceptionIfMinIsNegativ(): void
     {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(InvalidArgumentException::class);
 
         $min = -1;
         $max = 1;
@@ -288,7 +241,7 @@ public function setMaxIfMaxIsEqualToMin(): void
         $min = 1;
         $max = 1;
 
-        //sets max before because $min and $max are 0 by default
+        // sets max before because $min and $max are 0 by default
         $this->beVariant->setMax($max);
         $this->beVariant->setMin($min);
 
@@ -306,7 +259,7 @@ public function setMaxIfMaxIsGreaterThanMin(): void
         $min = 1;
         $max = 2;
 
-        //sets max before because $min and $max are 0 by default
+        // sets max before because $min and $max are 0 by default
         $this->beVariant->setMax($min);
         $this->beVariant->setMin($min);
 
@@ -321,12 +274,12 @@ public function setMaxIfMaxIsGreaterThanMin(): void
     #[Test]
     public function throwsInvalidArgumentExceptionIfMaxIsLesserThanMin(): void
     {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(InvalidArgumentException::class);
 
         $min = 2;
         $max = 1;
 
-        //sets max before because $min and $max are 0 by default
+        // sets max before because $min and $max are 0 by default
         $this->beVariant->setMax($min);
         $this->beVariant->setMin($min);
 
@@ -337,156 +290,17 @@ public function throwsInvalidArgumentExceptionIfMaxIsLesserThanMin(): void
     public function getParentPriceReturnsProductPriceForCalculationMethodZero(): void
     {
         self::markTestSkipped();
-        //        self::assertSame(
-        //            10.00,
-        //            $this->beVariant->getParentPrice()
-        //        );
     }
 
     #[Test]
     public function getParentPriceReturnsZeroPriceForCalculationMethodOne(): void
     {
         self::markTestSkipped();
-        //        $this->beVariant->setPriceCalcMethod(1);
-        //        self::assertSame(
-        //            0.00,
-        //            $this->beVariant->getParentPrice()
-        //        );
     }
 
     #[Test]
     public function getParentPriceRespectsTheQuantityDiscountsOfProductsForEachVariant(): void
     {
         self::markTestSkipped();
-        //        $quantityDiscounts = [
-        //            [
-        //                'quantity' => 3,
-        //                'price' => 7.00,
-        //            ],
-        //            [
-        //                'quantity' => 4,
-        //                'price' => 6.00,
-        //            ],
-        //            [
-        //                'quantity' => 5,
-        //                'price' => 5.00,
-        //            ],
-        //            [
-        //                'quantity' => 6,
-        //                'price' => 4.00,
-        //            ],
-        //            [
-        //                'quantity' => 7,
-        //                'price' => 3.00,
-        //            ],
-        //            [
-        //                'quantity' => 8,
-        //                'price' => 2.50,
-        //            ],
-        //        ];
-        //
-        //        $this->product->setQuantityDiscounts($quantityDiscounts);
-        //
-        //        $title = 'Test Variant';
-        //        $sku = 'test-variant-sku';
-        //        $priceCalcMethod = 0;
-        //        $price = 1.00;
-        //
-        //        $beVariant1 = $this->beVariantFactory->create(
-        //            '1',
-        //            $this->product,
-        //            $title,
-        //            $sku,
-        //            $priceCalcMethod,
-        //            $price,
-        //            1
-        //        );
-        //        $this->product->addBeVariant($beVariant1);
-        //
-        //        $beVariant2 = $this->beVariantFactory->create(
-        //            '2',
-        //            $this->product,
-        //            $title,
-        //            $sku,
-        //            $priceCalcMethod,
-        //            $price,
-        //            3
-        //        );
-        //        $this->product->addBeVariant($beVariant2);
-        //
-        //        $beVariant3 = $this->beVariantFactory->create(
-        //            '3',
-        //            $this->product,
-        //            $title,
-        //            $sku,
-        //            $priceCalcMethod,
-        //            $price,
-        //            4
-        //        );
-        //        $this->product->addBeVariant($beVariant3);
-        //
-        //        self::assertSame(
-        //            10.00,
-        //            $beVariant1->getParentPrice()
-        //        );
-        //
-        //        self::assertSame(
-        //            7.00,
-        //            $beVariant2->getParentPrice()
-        //        );
-        //
-        //        self::assertSame(
-        //            6.00,
-        //            $beVariant3->getParentPrice()
-        //        );
-    }
-
-    /**
-     * Creates a mock object which allows for calling protected methods and access of protected properties.
-     *
-     * Note: This method has no native return types on purpose, but only PHPDoc return type annotations.
-     * The reason is that the combination of "union types with generics in PHPDoc" and "a subset of those types as
-     * native types, but without the generics" tends to confuse PhpStorm's static type analysis (which we want to avoid).
-     *
-     * @template T of object
-     * @param class-string<T> $originalClassName name of class to create the mock object of
-     * @param string[]|null $methods name of the methods to mock, null for "mock no methods"
-     * @param array $arguments arguments to pass to constructor
-     * @param string $mockClassName the class name to use for the mock class
-     * @param bool $callOriginalConstructor whether to call the constructor
-     * @param bool $callOriginalClone whether to call the __clone method
-     * @param bool $callAutoload whether to call any autoload function
-     *
-     * @return MockObject&AccessibleObjectInterface&T a mock of `$originalClassName` with access methods added
-     *
-     * @throws \InvalidArgumentException
-     */
-    protected function getAccessibleMock(
-        string $originalClassName,
-        ?array $methods = [],
-        array $arguments = [],
-        string $mockClassName = '',
-        bool $callOriginalConstructor = true,
-        bool $callOriginalClone = true,
-        bool $callAutoload = true
-    ) {
-        $mockBuilder = $this->getMockBuilder($this->buildAccessibleProxy($originalClassName))
-            ->onlyMethods($methods)
-            ->setConstructorArgs($arguments)
-            ->setMockClassName($mockClassName);
-
-        if (!$callOriginalConstructor) {
-            $mockBuilder->disableOriginalConstructor();
-        }
-
-        if (!$callOriginalClone) {
-            $mockBuilder->disableOriginalClone();
-        }
-
-        if (!$callAutoload) {
-            $mockBuilder->disableAutoload();
-        }
-
-        return $mockBuilder->getMock();
     }
 }
diff --git a/Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php b/Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php
index f8b570a7..288e2928 100644
--- a/Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php
+++ b/Tests/Unit/Domain/Model/Cart/CartCouponFixTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -9,11 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoader;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\CartCouponFix;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
-use Extcode\Cart\Service\CurrencyTranslationService;
-use Extcode\Cart\Service\CurrencyTranslationServiceInterface;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -37,7 +39,7 @@ class CartCouponFixTest extends UnitTestCase
 
     protected float $cartMinPrice = 0.0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->taxClass = new TaxClass(1, '19 %', 0.19, 'normal');
 
@@ -58,81 +60,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructCouponWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponFix(
-            null,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCodeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponFix(
-            $this->title,
-            null,
-            $this->couponType,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCouponTypeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponFix(
-            $this->title,
-            $this->code,
-            null,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutDiscountThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponFix(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            null,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutTaxClassThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponFix(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            null,
-            $this->cartMinPrice
-        );
-    }
-
     #[Test]
     public function isCombinableInitiallyReturnsFalse(): void
     {
@@ -313,13 +240,14 @@ public function isUsableReturnsFalseIfCartMinPriceIsGreaterToGivenPrice(): void
     private function createCartMock(array $methods = ['getGross']): Cart|MockObject
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
 
         return $this->getMockBuilder(Cart::class)
-            ->onlyMethods($methods)
+            ->onlyMethods(array_values(array_filter(array_filter($methods, is_string(...)))))
             ->setConstructorArgs([[$this->taxClass]])
-            ->getMock();
+            ->getMock()
+        ;
     }
 }
diff --git a/Tests/Unit/Domain/Model/Cart/CartCouponPercentageTest.php b/Tests/Unit/Domain/Model/Cart/CartCouponPercentageTest.php
index 1c5dfea7..5b41f999 100644
--- a/Tests/Unit/Domain/Model/Cart/CartCouponPercentageTest.php
+++ b/Tests/Unit/Domain/Model/Cart/CartCouponPercentageTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -9,11 +11,11 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoader;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\CartCouponPercentage;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
-use Extcode\Cart\Service\CurrencyTranslationService;
-use Extcode\Cart\Service\CurrencyTranslationServiceInterface;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -37,7 +39,7 @@ class CartCouponPercentageTest extends UnitTestCase
 
     protected float $cartMinPrice = 0.0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->taxClass = new TaxClass(1, '19 %', 0.19, 'normal');
 
@@ -58,81 +60,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructCouponWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponPercentage(
-            null,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCodeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponPercentage(
-            $this->title,
-            null,
-            $this->couponType,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCouponTypeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponPercentage(
-            $this->title,
-            $this->code,
-            null,
-            $this->discount,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutDiscountThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponPercentage(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            null,
-            $this->taxClass,
-            $this->cartMinPrice
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutTaxClassThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new CartCouponPercentage(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            null,
-            $this->cartMinPrice
-        );
-    }
-
     #[Test]
     public function isCombinableInitiallyReturnsFalse(): void
     {
@@ -343,13 +270,14 @@ public function isUsableReturnsFalseIfCartMinPriceIsGreaterToGivenPrice(): void
     private function createCartMock(array $methods = ['getGross']): Cart|MockObject
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
 
         return $this->getMockBuilder(Cart::class)
-            ->onlyMethods($methods)
+            ->onlyMethods(array_values(array_filter(array_filter($methods, is_string(...)))))
             ->setConstructorArgs([[$this->taxClass]])
-            ->getMock();
+            ->getMock()
+        ;
     }
 }
diff --git a/Tests/Unit/Domain/Model/Cart/CartTest.php b/Tests/Unit/Domain/Model/Cart/CartTest.php
index eccb7fdd..94143af1 100644
--- a/Tests/Unit/Domain/Model/Cart/CartTest.php
+++ b/Tests/Unit/Domain/Model/Cart/CartTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -9,13 +11,14 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoader;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\CartCouponFix;
 use Extcode\Cart\Domain\Model\Cart\ProductFactory;
 use Extcode\Cart\Domain\Model\Cart\ProductFactoryInterface;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
-use Extcode\Cart\Service\CurrencyTranslationService;
-use Extcode\Cart\Service\CurrencyTranslationServiceInterface;
+use LogicException;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
@@ -24,8 +27,6 @@
 #[CoversClass(Cart::class)]
 class CartTest extends UnitTestCase
 {
-    private ProductFactoryInterface $productFactory;
-
     protected Cart $grossCart;
 
     protected Cart $netCart;
@@ -38,7 +39,9 @@ class CartTest extends UnitTestCase
 
     protected array $taxClasses = [];
 
-    public function setUp(): void
+    private ProductFactoryInterface $productFactory;
+
+    protected function setUp(): void
     {
         parent::setUp();
 
@@ -58,17 +61,8 @@ public function setUp(): void
         $this->netCart = $this->createCart(true);
     }
 
-    public function tearDown(): void
+    protected function tearDown(): void
     {
-        unset($this->grossCart);
-        unset($this->netCart);
-
-        unset($this->taxClasses);
-
-        unset($this->normalTaxClass);
-        unset($this->reducedTaxClass);
-        unset($this->freeTaxClass);
-
         parent::tearDown();
     }
 
@@ -265,7 +259,7 @@ public function resetDifferentOrderNumberThrowsException(): void
         $this->grossCart->setOrderNumber('ValidOrderNumber');
 
         $this->expectException(
-            'LogicException'
+            LogicException::class
         );
         $this->expectExceptionMessage(
             'You can not redeclare the order number of your cart.'
@@ -328,7 +322,7 @@ public function resetDifferentInvoiceNumberThrowsException(): void
         $this->grossCart->setInvoiceNumber('ValidInvoiceNumber');
 
         $this->expectException(
-            'LogicException'
+            LogicException::class
         );
         $this->expectExceptionMessage(
             'You can not redeclare the invoice number of your cart.',
@@ -1198,23 +1192,6 @@ public function getCouponGrossReturnsAllCouponsGrossSum(): void
         );
     }
 
-    protected function addFirstProductToCarts(): void
-    {
-        $product = $this->productFactory->create(
-            'simple',
-            1,
-            'SKU',
-            'First Product',
-            10.00,
-            $this->normalTaxClass,
-            1,
-            false
-        );
-
-        $this->grossCart->addProduct($product);
-        $this->netCart->addProduct($product);
-    }
-
     #[Test]
     public function getCouponGrossReturnsCouponsGrossSumOfCouponsWhenCartMinPriceWasReached(): void
     {
@@ -1338,13 +1315,14 @@ public function getSubtotalGrossReturnsSubtotalGross(): void
         $couponGross = 10.00;
 
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
         $cart = $this->getMockBuilder(Cart::class)
             ->onlyMethods(['getCouponGross', 'getCurrencyTranslation'])
             ->setConstructorArgs([$this->taxClasses])
-            ->getMock();
+            ->getMock()
+        ;
         $cart->method('getCouponGross')->willReturn($couponGross);
         $cart->method('getCurrencyTranslation')->willReturn(1.00);
 
@@ -1375,13 +1353,14 @@ public function getSubtotalNetReturnsSubtotalNet(): void
         $couponNet = $couponGross / 1.19;
 
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
         $cart = $this->getMockBuilder(Cart::class)
             ->onlyMethods(['getCouponNet', 'getCurrencyTranslation'])
             ->setConstructorArgs([$this->taxClasses])
-            ->getMock();
+            ->getMock()
+        ;
         $cart->method('getCouponNet')->willReturn($couponNet);
         $cart->method('getCurrencyTranslation')->willReturn(1.00);
 
@@ -1423,8 +1402,8 @@ public function getCurrencyCodeInitiallyReturnsString(): void
     public function constructorSetsCurrencyCode(): void
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
         $cart = new Cart(
             $this->taxClasses,
@@ -1476,8 +1455,8 @@ public function getCurrencySignInitiallyReturnsString(): void
     public function constructorSetsCurrencySign(): void
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
         $cart = new Cart(
             $this->taxClasses,
@@ -1529,8 +1508,8 @@ public function getCurrencyTranslationInitiallyReturnsFloat(): void
     public function constructorSetsCurrencyTranslation(): void
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
         $cart = new Cart(
             $this->taxClasses,
@@ -1604,11 +1583,28 @@ public function translatePriceReturnsCorrectPrice(): void
         );
     }
 
+    protected function addFirstProductToCarts(): void
+    {
+        $product = $this->productFactory->create(
+            'simple',
+            1,
+            'SKU',
+            'First Product',
+            10.00,
+            $this->normalTaxClass,
+            1,
+            false
+        );
+
+        $this->grossCart->addProduct($product);
+        $this->netCart->addProduct($product);
+    }
+
     private function createCart(bool $isNetCart): Cart
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
 
         return new Cart($this->taxClasses, $isNetCart);
diff --git a/Tests/Unit/Domain/Model/Cart/ProductTest.php b/Tests/Unit/Domain/Model/Cart/ProductTest.php
index c8edf292..b9a90674 100644
--- a/Tests/Unit/Domain/Model/Cart/ProductTest.php
+++ b/Tests/Unit/Domain/Model/Cart/ProductTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -23,8 +25,6 @@
 #[CoversClass(Product::class)]
 class ProductTest extends UnitTestCase
 {
-    private ProductFactoryInterface $productFactory;
-
     protected TaxClass $taxClass;
 
     protected ProductInterface $product;
@@ -41,7 +41,9 @@ class ProductTest extends UnitTestCase
 
     protected int $quantity;
 
-    public function setUp(): void
+    private ProductFactoryInterface $productFactory;
+
+    protected function setUp(): void
     {
         parent::setUp();
 
@@ -67,134 +69,11 @@ public function setUp(): void
         );
     }
 
-    public function tearDown(): void
+    protected function tearDown(): void
     {
-        unset(
-            $this->product,
-            $this->productType,
-            $this->productId,
-            $this->title,
-            $this->sku,
-            $this->price,
-            $this->quantity,
-            $this->taxClass
-        );
-
         parent::tearDown();
     }
 
-    #[Test]
-    public function constructCartProductWithoutProductTypeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            null,
-            $this->productId,
-            $this->sku,
-            $this->title,
-            $this->price,
-            $this->taxClass,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutProductIdThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            null,
-            $this->sku,
-            $this->title,
-            $this->price,
-            $this->taxClass,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutSkuThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            $this->productId,
-            null,
-            $this->title,
-            $this->price,
-            $this->taxClass,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            $this->productId,
-            $this->sku,
-            null,
-            $this->price,
-            $this->taxClass,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutPriceThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            $this->productId,
-            $this->sku,
-            $this->title,
-            null,
-            $this->taxClass,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutTaxClassThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            $this->productId,
-            $this->sku,
-            $this->title,
-            $this->price,
-            null,
-            $this->quantity
-        );
-    }
-
-    #[Test]
-    public function constructCartProductWithoutQuantityThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productFactory->create(
-            $this->productType,
-            $this->productId,
-            $this->sku,
-            $this->title,
-            $this->price,
-            $this->taxClass,
-            null
-        );
-    }
-
     #[Test]
     public function getCartProductTypeReturnsProductTypeSetByConstructor(): void
     {
diff --git a/Tests/Unit/Domain/Model/Cart/ServiceTest.php b/Tests/Unit/Domain/Model/Cart/ServiceTest.php
index 2b8751db..dc4ab9aa 100644
--- a/Tests/Unit/Domain/Model/Cart/ServiceTest.php
+++ b/Tests/Unit/Domain/Model/Cart/ServiceTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -9,12 +11,12 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoader;
+use Extcode\Cart\Configuration\Loader\CurrencyTranslationLoaderInterface;
 use Extcode\Cart\Domain\Model\Cart\Cart;
 use Extcode\Cart\Domain\Model\Cart\Product;
 use Extcode\Cart\Domain\Model\Cart\Service;
 use Extcode\Cart\Domain\Model\Cart\TaxClass;
-use Extcode\Cart\Service\CurrencyTranslationService;
-use Extcode\Cart\Service\CurrencyTranslationServiceInterface;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -38,7 +40,7 @@ class ServiceTest extends UnitTestCase
 
     protected TaxClass $freeTaxClass;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->normalTaxClass = new TaxClass(1, '19 %', 0.19, 'Normal');
         $this->reducedTaxClass = new TaxClass(2, '7 %', 0.07, 'Reduced');
@@ -348,6 +350,7 @@ public function isFreeWithCartGrossAboveRangeReturnsFalse(): void
             $service->isFree()
         );
     }
+
     #[Test]
     public function taxClassIdsGreaterZeroReturnsTaxClass(): void
     {
@@ -468,13 +471,14 @@ public function forTaxClassIdMinusTwoReturnsPseudoTaxClassWithIdMinusTwo(): void
     private function createCartMock(array $methods = ['getGross']): Cart|MockObject
     {
         GeneralUtility::addInstance(
-            CurrencyTranslationServiceInterface::class,
-            new CurrencyTranslationService()
+            CurrencyTranslationLoaderInterface::class,
+            new CurrencyTranslationLoader()
         );
 
         return $this->getMockBuilder(Cart::class)
-            ->onlyMethods($methods)
+            ->onlyMethods(array_values(array_filter(array_filter($methods, is_string(...)))))
             ->setConstructorArgs([$this->taxClasses])
-            ->getMock();
+            ->getMock()
+        ;
     }
 }
diff --git a/Tests/Unit/Domain/Model/Cart/TaxClassTest.php b/Tests/Unit/Domain/Model/Cart/TaxClassTest.php
index 2d646eef..afa79f3a 100644
--- a/Tests/Unit/Domain/Model/Cart/TaxClassTest.php
+++ b/Tests/Unit/Domain/Model/Cart/TaxClassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Cart;
 
 /*
@@ -27,7 +29,7 @@ class TaxClassTest extends UnitTestCase
 
     private string $title;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->id = 1;
         $this->value = '19 %%';
@@ -44,16 +46,8 @@ public function setUp(): void
         parent::setUp();
     }
 
-    public function tearDown(): void
+    protected function tearDown(): void
     {
-        unset(
-            $this->id,
-            $this->value,
-            $this->calc,
-            $this->title,
-            $this->fixture
-        );
-
         parent::tearDown();
     }
 
diff --git a/Tests/Unit/Domain/Model/CouponTest.php b/Tests/Unit/Domain/Model/CouponTest.php
index 453033ef..42165ea9 100644
--- a/Tests/Unit/Domain/Model/CouponTest.php
+++ b/Tests/Unit/Domain/Model/CouponTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model;
 
 /*
@@ -29,7 +31,7 @@ class CouponTest extends UnitTestCase
 
     protected int $taxClassId = 0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->title = 'Coupon';
         $this->code = 'coupon';
@@ -48,76 +50,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructCouponWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new Coupon(
-            null,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            $this->taxClassId
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCodeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new Coupon(
-            $this->title,
-            null,
-            $this->couponType,
-            $this->discount,
-            $this->taxClassId
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutCouponTypeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new Coupon(
-            $this->title,
-            $this->code,
-            null,
-            $this->discount,
-            $this->taxClassId
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutDiscountThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new Coupon(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            null,
-            $this->taxClassId
-        );
-    }
-
-    #[Test]
-    public function constructCouponWithoutTaxClassIdThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->coupon = new Coupon(
-            $this->title,
-            $this->code,
-            $this->couponType,
-            $this->discount,
-            null
-        );
-    }
-
     #[Test]
     public function getTitleInitiallyReturnsTitleSetDirectlyByConstructor(): void
     {
diff --git a/Tests/Unit/Domain/Model/Order/AbstractAddressTest.php b/Tests/Unit/Domain/Model/Order/AbstractAddressTest.php
index 5f5183ec..44b8f1ed 100644
--- a/Tests/Unit/Domain/Model/Order/AbstractAddressTest.php
+++ b/Tests/Unit/Domain/Model/Order/AbstractAddressTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -11,23 +13,19 @@
 
 use Extcode\Cart\Domain\Model\Order\AbstractAddress;
 use Extcode\Cart\Domain\Model\Order\Item;
+use Extcode\Cart\Tests\ObjectAccess;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
-use PHPUnit\Framework\MockObject\MockObject;
-use TYPO3\TestingFramework\Core\AccessibleObjectInterface;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
 
 #[CoversClass(AbstractAddress::class)]
 class AbstractAddressTest extends UnitTestCase
 {
-    /**
-     * @var MockObject&AbstractAddress
-     */
-    protected MockObject $address;
+    protected AbstractAddress $address;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->address = $this->getMockForAbstractClass(AbstractAddress::class);
+        $this->address = new class extends AbstractAddress {};
 
         parent::setUp();
     }
@@ -579,9 +577,6 @@ public function setFaxSetsFax(): void
     #[Test]
     public function getAdditionalInitiallyReturnsEmptyArray(): void
     {
-        self::assertIsArray(
-            $this->address->getAdditional()
-        );
         self::assertEmpty(
             $this->address->getAdditional()
         );
@@ -609,74 +604,13 @@ public function additionalIsInternallyJsonString(): void
             'additional' => true,
         ];
 
-        /** @var AccessibleObjectInterface&MockObject&AbstractAddress $address */
-        $address = $this->getAccessibleMock(
-            AbstractAddress::class,
-            [],
-            [],
-            '',
-            false
-        );
-
-        self::assertSame(
-            '',
-            $address->_get('additional')
-        );
+        $this->address->setAdditional($additional);
 
-        $address->setAdditional($additional);
+        $additionalPropertyValue = ObjectAccess::getProperty($this->address, 'additional');
 
         self::assertSame(
             json_encode($additional),
-            $address->_get('additional')
-        );
-    }
-
-    /**
-     * Creates a mock object which allows for calling protected methods and access of protected properties.
-     *
-     * Note: This method has no native return types on purpose, but only PHPDoc return type annotations.
-     * The reason is that the combination of "union types with generics in PHPDoc" and "a subset of those types as
-     * native types, but without the generics" tends to confuse PhpStorm's static type analysis (which we want to avoid).
-     *
-     * @template T of object
-     * @param class-string<T> $originalClassName name of class to create the mock object of
-     * @param string[]|null $methods name of the methods to mock, null for "mock no methods"
-     * @param array $arguments arguments to pass to constructor
-     * @param string $mockClassName the class name to use for the mock class
-     * @param bool $callOriginalConstructor whether to call the constructor
-     * @param bool $callOriginalClone whether to call the __clone method
-     * @param bool $callAutoload whether to call any autoload function
-     *
-     * @return MockObject&AccessibleObjectInterface
-     *
-     * @throws \InvalidArgumentException
-     */
-    protected function getAccessibleMock(
-        string $originalClassName,
-        ?array $methods = [],
-        array $arguments = [],
-        string $mockClassName = '',
-        bool $callOriginalConstructor = true,
-        bool $callOriginalClone = true,
-        bool $callAutoload = true
-    ): MockObject {
-        $mockBuilder = $this->getMockBuilder($this->buildAccessibleProxy($originalClassName))
-            ->addMethods($methods)
-            ->setConstructorArgs($arguments)
-            ->setMockClassName($mockClassName);
-
-        if (!$callOriginalConstructor) {
-            $mockBuilder->disableOriginalConstructor();
-        }
-
-        if (!$callOriginalClone) {
-            $mockBuilder->disableOriginalClone();
-        }
-
-        if (!$callAutoload) {
-            $mockBuilder->disableAutoload();
-        }
-
-        return $mockBuilder->getMock();
+            $additionalPropertyValue
+        );
     }
 }
diff --git a/Tests/Unit/Domain/Model/Order/AbstractServiceTest.php b/Tests/Unit/Domain/Model/Order/AbstractServiceTest.php
index 69fbdbe5..dedb84ac 100644
--- a/Tests/Unit/Domain/Model/Order/AbstractServiceTest.php
+++ b/Tests/Unit/Domain/Model/Order/AbstractServiceTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -21,9 +23,9 @@ class AbstractServiceTest extends UnitTestCase
 {
     protected AbstractService $service;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
-        $this->service = $this->getMockForAbstractClass(AbstractService::class);
+        $this->service = new class extends AbstractService {};
 
         parent::setUp();
     }
@@ -70,7 +72,7 @@ public function toArrayReturnsArray(): void
             $this->service->toArray()
         );
 
-        //with taxClass
+        // with taxClass
         $this->service->setTaxClass($taxClass);
 
         $serviceArr['taxClass'] = $taxClass->toArray();
diff --git a/Tests/Unit/Domain/Model/Order/DiscountTest.php b/Tests/Unit/Domain/Model/Order/DiscountTest.php
index 0df8791f..de5f2436 100644
--- a/Tests/Unit/Domain/Model/Order/DiscountTest.php
+++ b/Tests/Unit/Domain/Model/Order/DiscountTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -32,7 +34,7 @@ class DiscountTest extends UnitTestCase
 
     protected float $tax = 0.0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->taxClass = new TaxClass(1, '19 %', 0.19, 'normal');
 
@@ -54,96 +56,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructDiscountWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            null,
-            $this->code,
-            $this->gross,
-            $this->net,
-            $this->taxClass,
-            $this->tax
-        );
-    }
-
-    #[Test]
-    public function constructDiscountWithoutCodeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            $this->title,
-            null,
-            $this->gross,
-            $this->net,
-            $this->taxClass,
-            $this->tax
-        );
-    }
-
-    #[Test]
-    public function constructDiscountWithoutGrossThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            $this->title,
-            $this->code,
-            null,
-            $this->net,
-            $this->taxClass,
-            $this->tax
-        );
-    }
-
-    #[Test]
-    public function constructDiscountWithoutNetThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            $this->title,
-            $this->code,
-            $this->gross,
-            null,
-            $this->taxClass,
-            $this->tax
-        );
-    }
-
-    #[Test]
-    public function constructDiscountWithoutTaxClassThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            $this->title,
-            $this->code,
-            $this->gross,
-            $this->net,
-            null,
-            $this->tax
-        );
-    }
-
-    #[Test]
-    public function constructDiscountWithoutTaxThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Discount(
-            $this->title,
-            $this->code,
-            $this->gross,
-            $this->net,
-            $this->taxClass,
-            null
-        );
-    }
-
     #[Test]
     public function getTitleInitiallyReturnsTitleSetDirectlyByConstructor(): void
     {
diff --git a/Tests/Unit/Domain/Model/Order/ItemTest.php b/Tests/Unit/Domain/Model/Order/ItemTest.php
index e89e807b..4a912b68 100644
--- a/Tests/Unit/Domain/Model/Order/ItemTest.php
+++ b/Tests/Unit/Domain/Model/Order/ItemTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -21,7 +23,7 @@ class ItemTest extends UnitTestCase
 
     protected Item $item;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->item = new Item();
 
diff --git a/Tests/Unit/Domain/Model/Order/PaymentTest.php b/Tests/Unit/Domain/Model/Order/PaymentTest.php
index f8079898..1fe47ba7 100644
--- a/Tests/Unit/Domain/Model/Order/PaymentTest.php
+++ b/Tests/Unit/Domain/Model/Order/PaymentTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -21,7 +23,7 @@ class PaymentTest extends UnitTestCase
 {
     protected Payment $payment;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->payment = new Payment();
 
@@ -33,6 +35,7 @@ public function toArrayReturnsArray(): void
     {
         $provider = 'test_provider';
 
+        $this->payment->setServiceId(1);
         $this->payment->setProvider($provider);
 
         $result = $this->payment->toArray();
diff --git a/Tests/Unit/Domain/Model/Order/ProductAdditionalTest.php b/Tests/Unit/Domain/Model/Order/ProductAdditionalTest.php
index 47c2901f..c5a6965e 100644
--- a/Tests/Unit/Domain/Model/Order/ProductAdditionalTest.php
+++ b/Tests/Unit/Domain/Model/Order/ProductAdditionalTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -25,7 +27,7 @@ class ProductAdditionalTest extends UnitTestCase
 
     protected ProductAdditional $productAdditional;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->additionalType = 'additional-type';
         $this->additionalKey = 'additional-key';
@@ -40,42 +42,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructProductAdditionalWithoutAdditionalTypeThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productAdditional = new ProductAdditional(
-            null,
-            $this->additionalKey,
-            $this->additionalValue
-        );
-    }
-
-    #[Test]
-    public function constructProductAdditionalWithoutAdditionalKeyThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productAdditional = new ProductAdditional(
-            $this->additionalType,
-            null,
-            $this->additionalValue
-        );
-    }
-
-    #[Test]
-    public function constructProductAdditionalWithoutAdditionalValueThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->productAdditional = new ProductAdditional(
-            $this->additionalType,
-            $this->additionalKey,
-            null
-        );
-    }
-
     #[Test]
     public function getAdditionalTypeInitiallyReturnsAdditionalTypeSetDirectlyByConstructor(): void
     {
diff --git a/Tests/Unit/Domain/Model/Order/ProductTest.php b/Tests/Unit/Domain/Model/Order/ProductTest.php
index 9fe63561..eef619f6 100644
--- a/Tests/Unit/Domain/Model/Order/ProductTest.php
+++ b/Tests/Unit/Domain/Model/Order/ProductTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -25,7 +27,7 @@ class ProductTest extends UnitTestCase
 
     protected int $count = 0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->sku = 'sku';
         $this->title = 'title';
diff --git a/Tests/Unit/Domain/Model/Order/ShippingTest.php b/Tests/Unit/Domain/Model/Order/ShippingTest.php
index 0deb9db5..610b6bd3 100644
--- a/Tests/Unit/Domain/Model/Order/ShippingTest.php
+++ b/Tests/Unit/Domain/Model/Order/ShippingTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -19,7 +21,7 @@ class ShippingTest extends UnitTestCase
 {
     protected Shipping $shipping;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->shipping = new Shipping();
 
diff --git a/Tests/Unit/Domain/Model/Order/TaxClassTest.php b/Tests/Unit/Domain/Model/Order/TaxClassTest.php
index c82a29f0..4817edd1 100644
--- a/Tests/Unit/Domain/Model/Order/TaxClassTest.php
+++ b/Tests/Unit/Domain/Model/Order/TaxClassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -25,7 +27,7 @@ class TaxClassTest extends UnitTestCase
 
     protected float $calc = 0.0;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->title = 'normal';
         $this->value = '19 %';
diff --git a/Tests/Unit/Domain/Model/Order/TaxTest.php b/Tests/Unit/Domain/Model/Order/TaxTest.php
index 98d82242..bfeab767 100644
--- a/Tests/Unit/Domain/Model/Order/TaxTest.php
+++ b/Tests/Unit/Domain/Model/Order/TaxTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -24,7 +26,7 @@ class TaxTest extends UnitTestCase
 
     protected TaxClass $taxClass;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->taxClass = new TaxClass();
         $this->taxClass->setTitle('normal');
@@ -41,28 +43,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructTaxWithoutTaxThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Tax(
-            null,
-            $this->taxClass
-        );
-    }
-
-    #[Test]
-    public function constructTaxWithoutTaxClassThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        new Tax(
-            $this->tax,
-            null
-        );
-    }
-
     #[Test]
     public function getTaxInitiallyReturnsTaxSetDirectlyByConstructor(): void
     {
diff --git a/Tests/Unit/Domain/Model/Order/TransactionTest.php b/Tests/Unit/Domain/Model/Order/TransactionTest.php
index 12f12d35..353cdec6 100644
--- a/Tests/Unit/Domain/Model/Order/TransactionTest.php
+++ b/Tests/Unit/Domain/Model/Order/TransactionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Order;
 
 /*
@@ -19,7 +21,7 @@ class TransactionTest extends UnitTestCase
 {
     protected Transaction $transaction;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->transaction = new Transaction();
 
diff --git a/Tests/Unit/Domain/Model/Product/AbstractProductTest.php b/Tests/Unit/Domain/Model/Product/AbstractProductTest.php
index 3e6d68ef..d6b34952 100644
--- a/Tests/Unit/Domain/Model/Product/AbstractProductTest.php
+++ b/Tests/Unit/Domain/Model/Product/AbstractProductTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
 
 /*
@@ -12,24 +14,18 @@
 use Extcode\Cart\Domain\Model\Product\AbstractProduct;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
-use PHPUnit\Framework\MockObject\MockObject;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
 
 #[CoversClass(AbstractProduct::class)]
 class AbstractProductTest extends UnitTestCase
 {
-    /**
-     * @var MockObject&AbstractProduct
-     */
-    protected MockObject $product;
+    protected AbstractProduct $product;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->product = $this->getMockForAbstractClass(
-            AbstractProduct::class
-        );
+        $this->product = new class extends AbstractProduct {};
     }
 
     #[Test]
diff --git a/Tests/Unit/Domain/Model/Product/CategoryTraitStub.php b/Tests/Unit/Domain/Model/Product/CategoryTraitStub.php
new file mode 100644
index 00000000..5f1b8c8e
--- /dev/null
+++ b/Tests/Unit/Domain/Model/Product/CategoryTraitStub.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Product\CategoryTrait;
+
+final class CategoryTraitStub
+{
+    use CategoryTrait;
+}
diff --git a/Tests/Unit/Domain/Model/Product/CategoryTraitTest.php b/Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
index fd44f0ae..ed6a469b 100644
--- a/Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
+++ b/Tests/Unit/Domain/Model/Product/CategoryTraitTest.php
@@ -23,11 +23,11 @@ class CategoryTraitTest extends UnitTestCase
 {
     protected $trait;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->trait = $this->getObjectForTrait(CategoryTrait::class);
+        $this->trait = new CategoryTraitStub();
     }
 
     #[Test]
diff --git a/Tests/Unit/Domain/Model/Product/MeasureTraitStub.php b/Tests/Unit/Domain/Model/Product/MeasureTraitStub.php
new file mode 100644
index 00000000..b235a202
--- /dev/null
+++ b/Tests/Unit/Domain/Model/Product/MeasureTraitStub.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Product\MeasureTrait;
+
+final class MeasureTraitStub
+{
+    use MeasureTrait;
+}
diff --git a/Tests/Unit/Domain/Model/Product/MeasureTraitTest.php b/Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
index 2dbc7539..2137de29 100644
--- a/Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
+++ b/Tests/Unit/Domain/Model/Product/MeasureTraitTest.php
@@ -21,11 +21,11 @@ class MeasureTraitTest extends UnitTestCase
 {
     protected $trait;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->trait = $this->getObjectForTrait(MeasureTrait::class);
+        $this->trait = new MeasureTraitStub();
     }
 
     #[Test]
@@ -158,31 +158,9 @@ public function getIsMeasureUnitCompatibilityAndNotSetBasePriceMeasureUnitsRetru
         );
     }
 
-    /**
-     * Measurement Units Provider
-     *
-     * @return array
-     */
-    public static function measureUnitsProvider()
-    {
-        return [
-            ['mg', 'kg', 1000000.0, 1000.0, 1000.0],
-            ['g', 'kg', 1000.0, 1000.0, 1.0],
-            ['kg', 'kg', 1.0, 1000.0, 0.001],
-            ['ml', 'l', 1000.0, 1000.0, 1.0],
-            ['cl', 'l', 100.0, 1000.0, 0.1],
-            ['l', 'l', 1.0, 1000.0, 0.001],
-            ['cbm', 'l', 0.001, 1.0, 0.001],
-            ['mm', 'm', 1000.0, 1000.0, 1.0],
-            ['cm', 'm', 100.0, 1000.0, 0.1],
-            ['m', 'm', 1.0, 2.0, 0.5],
-            ['km', 'm', 0.001, 2.0, 0.0005],
-            ['m2', 'm2', 1.0, 20.0, 0.05],
-        ];
-    }
-
     /**
      * @test
+     *
      * @dataProvider measureUnitsProvider
      */
     public function getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit(
@@ -202,6 +180,7 @@ public function getIsMeasureUnitCompatibilityRetrunsTrueOnSameTypeOfMeasureUnit(
 
     /**
      * @test
+     *
      * @dataProvider measureUnitsProvider
      */
     public function getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureUnitReturnsFactor(
@@ -223,6 +202,7 @@ public function getMeasureUnitFactorForGivenPriceMeasureUnitAndBasePriceMeasureU
 
     /**
      * @test
+     *
      * @dataProvider measureUnitsProvider
      */
     public function getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasureUnitRetrunsPrice(
@@ -241,4 +221,25 @@ public function getCalculatedBasePriceForGivenPriceMeasureUnitAndBasePriceMeasur
             $this->trait->getMeasureUnitFactor()
         );
     }
+
+    /**
+     * Measurement Units Provider
+     *
+     * @return array
+     */
+    public static function measureUnitsProvider(): iterable
+    {
+        yield ['mg', 'kg', 1000000.0, 1000.0, 1000.0];
+        yield ['g', 'kg', 1000.0, 1000.0, 1.0];
+        yield ['kg', 'kg', 1.0, 1000.0, 0.001];
+        yield ['ml', 'l', 1000.0, 1000.0, 1.0];
+        yield ['cl', 'l', 100.0, 1000.0, 0.1];
+        yield ['l', 'l', 1.0, 1000.0, 0.001];
+        yield ['cbm', 'l', 0.001, 1.0, 0.001];
+        yield ['mm', 'm', 1000.0, 1000.0, 1.0];
+        yield ['cm', 'm', 100.0, 1000.0, 0.1];
+        yield ['m', 'm', 1.0, 2.0, 0.5];
+        yield ['km', 'm', 0.001, 2.0, 0.0005];
+        yield ['m2', 'm2', 1.0, 20.0, 0.05];
+    }
 }
diff --git a/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitStub.php b/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitStub.php
new file mode 100644
index 00000000..22e05e0c
--- /dev/null
+++ b/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitStub.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Product\ServiceAttributeTrait;
+
+final class ServiceAttributeTraitStub
+{
+    use ServiceAttributeTrait;
+}
diff --git a/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php b/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
index b6d71ae7..054da7d8 100644
--- a/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
+++ b/Tests/Unit/Domain/Model/Product/ServiceAttributeTraitTest.php
@@ -21,11 +21,11 @@ class ServiceAttributeTraitTest extends UnitTestCase
 {
     protected $trait;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->trait = $this->getObjectForTrait(ServiceAttributeTrait::class);
+        $this->trait = new ServiceAttributeTraitStub();
     }
 
     #[Test]
diff --git a/Tests/Unit/Domain/Model/Product/StockTraitStub.php b/Tests/Unit/Domain/Model/Product/StockTraitStub.php
new file mode 100644
index 00000000..28c07b11
--- /dev/null
+++ b/Tests/Unit/Domain/Model/Product/StockTraitStub.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Product\StockTrait;
+
+final class StockTraitStub
+{
+    use StockTrait;
+}
diff --git a/Tests/Unit/Domain/Model/Product/StockTraitTest.php b/Tests/Unit/Domain/Model/Product/StockTraitTest.php
index 478e5030..02a8f5c3 100644
--- a/Tests/Unit/Domain/Model/Product/StockTraitTest.php
+++ b/Tests/Unit/Domain/Model/Product/StockTraitTest.php
@@ -21,11 +21,11 @@ class StockTraitTest extends UnitTestCase
 {
     protected $trait;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->trait = $this->getObjectForTrait(StockTrait::class);
+        $this->trait = new StockTraitStub();
     }
 
     #[Test]
diff --git a/Tests/Unit/Domain/Model/Product/TagTraitStub.php b/Tests/Unit/Domain/Model/Product/TagTraitStub.php
new file mode 100644
index 00000000..19dc4a5e
--- /dev/null
+++ b/Tests/Unit/Domain/Model/Product/TagTraitStub.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Unit\Domain\Model\Product;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Extcode\Cart\Domain\Model\Product\TagTrait;
+
+final class TagTraitStub
+{
+    use TagTrait;
+}
diff --git a/Tests/Unit/Domain/Model/Product/TagTraitTest.php b/Tests/Unit/Domain/Model/Product/TagTraitTest.php
index 1425bbcf..1ad285c2 100644
--- a/Tests/Unit/Domain/Model/Product/TagTraitTest.php
+++ b/Tests/Unit/Domain/Model/Product/TagTraitTest.php
@@ -24,11 +24,11 @@ class TagTraitTest extends UnitTestCase
 {
     protected $trait;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         parent::setUp();
 
-        $this->trait = $this->getObjectForTrait(TagTrait::class);
+        $this->trait = new TagTraitStub();
     }
 
     #[Test]
diff --git a/Tests/Unit/Domain/Model/TagTest.php b/Tests/Unit/Domain/Model/TagTest.php
index 89a36a46..38d5aafe 100644
--- a/Tests/Unit/Domain/Model/TagTest.php
+++ b/Tests/Unit/Domain/Model/TagTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Domain\Model;
 
 /*
@@ -21,7 +23,7 @@ class TagTest extends UnitTestCase
 
     protected string $title = '';
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         $this->title = 'Title';
 
@@ -32,16 +34,6 @@ public function setUp(): void
         parent::setUp();
     }
 
-    #[Test]
-    public function constructCouponWithoutTitleThrowsException(): void
-    {
-        $this->expectException(\TypeError::class);
-
-        $this->tag = new Tag(
-            null
-        );
-    }
-
     #[Test]
     public function getTitleInitiallyReturnsTitleSetDirectlyByConstructor(): void
     {
diff --git a/Tests/Unit/Validation/Validator/EmptyValidatorTest.php b/Tests/Unit/Validation/Validator/EmptyValidatorTest.php
index 5ced1c1a..365c3236 100644
--- a/Tests/Unit/Validation/Validator/EmptyValidatorTest.php
+++ b/Tests/Unit/Validation/Validator/EmptyValidatorTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Extcode\Cart\Tests\Unit\Validation\Validator;
 
 /*
@@ -12,8 +14,10 @@
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\MockObject\MockObject;
+use SplObjectStorage;
 use TYPO3\CMS\Extbase\Validation\Validator\ValidatorInterface;
 use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
+use stdClass;
 
 #[CoversClass(EmptyValidator::class)]
 class EmptyValidatorTest extends UnitTestCase
@@ -22,28 +26,13 @@ class EmptyValidatorTest extends UnitTestCase
 
     protected ValidatorInterface $validator;
 
-    /**
-     * @param array $options
-     */
-    protected function getValidator(array $options = []): ValidatorInterface
-    {
-        return new $this->validatorClassName($options);
-    }
-
-    /**
-     * @param array $options
-     */
-    protected function validatorOptions(array $options): void
-    {
-        $this->validator = $this->getValidator($options);
-    }
-
-    public function setUp(): void
+    protected function setUp(): void
     {
-        /** @var MockObject&EmptyValidator $validator */
+        /** @var EmptyValidator&MockObject $validator */
         $validator = $this->getMockBuilder($this->validatorClassName)
             ->onlyMethods(['translateErrorMessage'])
-            ->getMock();
+            ->getMock()
+        ;
 
         $this->validator = $validator;
 
@@ -79,7 +68,7 @@ public function emptyValidatorReturnsNoErrorForANullValue(): void
     #[Test]
     public function emptyValidatorCreatesTheCorrectErrorForAnEmptySubject(): void
     {
-        self::assertEquals(1, count($this->validator->validate('a not empty string')->getErrors()));
+        self::assertCount(1, $this->validator->validate('a not empty string')->getErrors());
     }
 
     #[Test]
@@ -92,14 +81,24 @@ public function emptyValidatorWorksForArrays(): void
     #[Test]
     public function emptyValidatorWorksForCountableObjects(): void
     {
-        self::assertFalse($this->validator->validate(new \SplObjectStorage())->hasErrors());
+        self::assertFalse($this->validator->validate(new SplObjectStorage())->hasErrors());
     }
 
     #[Test]
     public function emptyValidatorWorksForEmptyCountableObjects(): void
     {
-        $countableObject = new \SplObjectStorage();
-        $countableObject->offsetSet(new \stdClass());
+        $countableObject = new SplObjectStorage();
+        $countableObject->offsetSet(new stdClass());
         self::assertTrue($this->validator->validate($countableObject)->hasErrors());
     }
+
+    protected function getValidator(array $options = []): ValidatorInterface
+    {
+        return new $this->validatorClassName($options);
+    }
+
+    protected function validatorOptions(array $options): void
+    {
+        $this->validator = $this->getValidator($options);
+    }
 }
diff --git a/composer.json b/composer.json
index 6e30a450..8e3bfce7 100644
--- a/composer.json
+++ b/composer.json
@@ -38,9 +38,12 @@
         "allow-plugins": {
             "typo3/class-alias-loader": true,
             "typo3/cms-composer-installers": true,
-            "sbuerk/typo3-cmscomposerinstallers-testingframework-bridge": true
-        }
+            "phpstan/extension-installer": true
+        },
+        "lock": false,
+        "sort-packages": true
     },
+    "version": "12.0.0",
     "extra": {
         "typo3/cms": {
             "extension-key": "cart",
@@ -51,63 +54,38 @@
         "php": "~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0",
         "ext-json": "*",
         "ext-openssl": "*",
-        "typo3/cms-core": "^13.4",
-        "typo3/cms-extbase": "^13.4",
-        "typo3/cms-fluid": "^13.4"
+        "typo3/cms-core": "^14.3",
+        "typo3/cms-extbase": "^14.3",
+        "typo3/cms-fluid": "^14.3",
+        "typo3/cms-frontend": "^14.3"
     },
     "require-dev": {
-        "codappix/typo3-php-datasets": "^2.0",
-        "friendsofphp/php-cs-fixer": "^3.64",
-        "phpstan/phpstan": "^1.12",
-        "ssch/typo3-rector": "^2.9",
-        "typo3/cms-beuser": "^13.4",
-        "typo3/cms-dashboard": "^13.4",
-        "typo3/cms-form": "^13.4",
-        "typo3/testing-framework": "^8.2"
+        "codappix/typo3-php-datasets": "^2.1",
+        "erickskrauch/php-cs-fixer-custom-fixers": "*",
+        "friendsofphp/php-cs-fixer": "^3.95",
+        "kubawerlos/php-cs-fixer-custom-fixers": "*",
+        "phpstan/extension-installer": "^1.4",
+        "phpstan/phpstan": "^2.1",
+        "phpstan/phpstan-deprecation-rules": "^2.0",
+        "phpstan/phpstan-phpunit": "^2.0",
+        "spaze/phpstan-disallowed-calls": "^4.7",
+        "staabm/phpstan-todo-by": "^0.3",
+        "typo3/cms-beuser": "^14.3",
+        "typo3/cms-dashboard": "^14.3",
+        "typo3/cms-form": "^14.3",
+        "typo3/testing-framework": "^9.5",
+        "ssch/typo3-rector": "^3.11"
     },
     "scripts": {
-        "test:cgl": [
-            ".build/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --using-cache=no --path-mode=intersection ./"
-        ],
-        "test:cgl:dry-run": [
-            ".build/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --dry-run --using-cache=no --path-mode=intersection ./"
-        ],
-        "test:php:lint": [
-            "find *.php Classes Configuration Tests -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l"
-        ],
-        "test:php:unit": [
-            ".build/bin/phpunit -c Build/UnitTests.xml"
-        ],
-        "test:php:functional": [
-            "typo3DatabaseDriver=\"pdo_sqlite\" .build/bin/phpunit -c Build/FunctionalTests.xml"
-        ],
-        "test:phpstan:analyse": [
-            ".build/bin/phpstan analyse -c Build/phpstan.neon --memory-limit 256M"
-        ],
-        "test:rector:process": [
-            ".build/bin/rector process *"
-        ],
-        "test:rector:process:dry-run": [
-            ".build/bin/rector process * --dry-run"
-        ],
-        "test:typoscript:lint": [
-            ".build/bin/typoscript-lint -c Build/typoscriptlint.yaml Configuration"
-        ],
-        "test:php": [
-            "@test:php:lint",
-            "@test:php:unit",
-            "@test:php:functional"
-        ],
-        "test:all": [
-            "@test:phpstan:analyse",
-            "@test:rector:process",
-            "@test:cgl",
-            "@test:typoscript:lint",
-            "@test:php"
-        ]
+        "project:cgl": "php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --dry-run --diff --using-cache=no",
+        "project:cgl:fix": "php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php --using-cache=no",
+        "project:lint:php": "find ./*.php Classes Configuration Tests -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l",
+        "project:phpstan": "phpstan analyse -c Build/phpstan.neon --memory-limit 256M",
+        "project:test:unit": "phpunit -c Build/phpunit.xml.dist --testsuite unit --display-warnings --display-deprecations --display-errors --display-notices",
+        "project:test:functional": "phpunit -c Build/phpunit.xml.dist --testsuite functional --display-warnings --display-deprecations --display-errors"
     },
     "suggest": {
-        "typo3/cms-dashboard": "^13.4",
-        "typo3/cms-form": "^13.4"
+        "typo3/cms-dashboard": "^14.3",
+        "typo3/cms-form": "^14.3"
     }
 }
diff --git a/ext_emconf.php b/ext_emconf.php
deleted file mode 100644
index a71cd715..00000000
--- a/ext_emconf.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-$EM_CONF['cart'] = [
-    'title' => 'Cart',
-    'description' => 'Shopping Cart(s) for TYPO3',
-    'category' => 'plugin',
-    'version' => '11.7.2',
-    'state' => 'stable',
-    'author' => 'Daniel Gohlke',
-    'author_email' => 'ext@extco.de',
-    'author_company' => 'extco.de UG (haftungsbeschränkt)',
-    'constraints' => [
-        'depends' => [
-            'php' => '8.2.0-8.5.99',
-            'typo3' => '13.4.0-13.4.99',
-            'extbase' => '13.4.0-13.4.99',
-            'fluid' => '13.4.0-13.4.99',
-        ],
-        'conflicts' => [],
-        'suggests' => [],
-    ],
-];
diff --git a/ext_localconf.php b/ext_localconf.php
index 24086288..670647b3 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 defined('TYPO3') or die();
 
 use Extcode\Cart\Controller\Cart\CartController;
@@ -11,77 +13,115 @@
 use Extcode\Cart\Controller\Cart\PaymentController;
 use Extcode\Cart\Controller\Cart\ProductController;
 use Extcode\Cart\Controller\Cart\ShippingController;
+use Extcode\Cart\Domain\Log\DatabaseWriter;
+use TYPO3\CMS\Core\Log\LogLevel;
+use TYPO3\CMS\Core\Utility\ArrayUtility;
 use TYPO3\CMS\Extbase\Utility\ExtensionUtility;
 
-// configure plugins
-
-ExtensionUtility::configurePlugin(
-    'Cart',
-    'MiniCart',
-    [
-        CartPreviewController::class => 'show',
-        CurrencyController::class => 'update',
-    ],
-    [
-        CartPreviewController::class => 'show',
-        CurrencyController::class => 'update',
-    ],
-    ExtensionUtility::PLUGIN_TYPE_CONTENT_ELEMENT
-);
+(static function (string $extKey): void {
+    if (is_array($GLOBALS['TYPO3_CONF_VARS'] ?? null) === false) {
+        throw new \Exception('$GLOBALS[\'TYPO3_CONF_VARS\'] is not an array', 1774601240);
+    }
 
-ExtensionUtility::configurePlugin(
-    'Cart',
-    'Cart',
-    [
-        CartController::class => 'show, clear, update',
-        CountryController::class => 'update',
-        CouponController::class => 'add, remove',
-        CurrencyController::class => 'update',
-        OrderController::class => 'show, create',
-        PaymentController::class => 'update',
-        ProductController::class => 'add, remove',
-        ShippingController::class => 'update',
-    ],
-    [
-        CartController::class => 'show, clear, update',
-        CountryController::class => 'update',
-        CouponController::class => 'add, remove',
-        CurrencyController::class => 'update',
-        OrderController::class => 'show, create',
-        PaymentController::class => 'update',
-        ProductController::class => 'add, remove',
-        ShippingController::class => 'update',
-    ],
-    ExtensionUtility::PLUGIN_TYPE_CONTENT_ELEMENT
-);
+    ArrayUtility::mergeRecursiveWithOverrule(
+        $GLOBALS['TYPO3_CONF_VARS'],
+        [
+            'LOG' => [
+                'Extcode' => [
+                    'Cart' => [
+                        'Domain' => [
+                            'Log' => [
+                                'LogService' => [
+                                    'writerConfiguration' => [
+                                        LogLevel::INFO => [
+                                            DatabaseWriter::class => [],
+                                        ],
+                                    ],
+                                ],
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+            // view paths for TYPO3 Mail API
+            'MAIL' => [
+                'templateRootPaths' => [
+                    '1588829280' => 'EXT:cart/Resources/Private/Templates/',
+                ],
+                'partialRootPaths' => [
+                    '1588829280' => 'EXT:cart/Resources/Private/Partials/',
+                ],
+            ],
+            'SYS' => [
+                'fluid' => [
+                    'namespaces' => [
+                        'cart' => [
+                            1 => 'Extcode\\Cart\\ViewHelpers',
+                        ],
+                    ],
+                ],
+            ],
+        ]
+    );
 
-ExtensionUtility::configurePlugin(
-    'Cart',
-    'Currency',
-    [
-        CurrencyController::class => 'edit, update',
-    ],
-    [
-        CurrencyController::class => 'edit, update',
-    ],
-    ExtensionUtility::PLUGIN_TYPE_CONTENT_ELEMENT
-);
+    // configure plugins
+    ExtensionUtility::configurePlugin(
+        'Cart',
+        'MiniCart',
+        [
+            CartPreviewController::class => 'show',
+            CurrencyController::class => 'update',
+        ],
+        [
+            CartPreviewController::class => 'show',
+            CurrencyController::class => 'update',
+        ]
+    );
 
-ExtensionUtility::configurePlugin(
-    'Cart',
-    'Order',
-    [
-        \Extcode\Cart\Controller\Order\OrderController::class => 'list, show',
-    ],
-    [
-        \Extcode\Cart\Controller\Order\OrderController::class => 'list, show',
-    ],
-    ExtensionUtility::PLUGIN_TYPE_CONTENT_ELEMENT
-);
+    ExtensionUtility::configurePlugin(
+        'Cart',
+        'Cart',
+        [
+            CartController::class => 'show, clear, update',
+            CountryController::class => 'update',
+            CouponController::class => 'add, remove',
+            CurrencyController::class => 'update',
+            OrderController::class => 'show, create',
+            PaymentController::class => 'update',
+            ProductController::class => 'add, remove',
+            ShippingController::class => 'update',
+        ],
+        [
+            CartController::class => 'show, clear, update',
+            CountryController::class => 'update',
+            CouponController::class => 'add, remove',
+            CurrencyController::class => 'update',
+            OrderController::class => 'show, create',
+            PaymentController::class => 'update',
+            ProductController::class => 'add, remove',
+            ShippingController::class => 'update',
+        ]
+    );
 
-// register "cart:" namespace
-$GLOBALS['TYPO3_CONF_VARS']['SYS']['fluid']['namespaces']['cart'][] = 'Extcode\\Cart\\ViewHelpers';
+    ExtensionUtility::configurePlugin(
+        'Cart',
+        'Currency',
+        [
+            CurrencyController::class => 'edit, update',
+        ],
+        [
+            CurrencyController::class => 'edit, update',
+        ]
+    );
 
-// view paths for TYPO3 Mail API
-$GLOBALS['TYPO3_CONF_VARS']['MAIL']['templateRootPaths']['1588829280'] = 'EXT:cart/Resources/Private/Templates/';
-$GLOBALS['TYPO3_CONF_VARS']['MAIL']['partialRootPaths']['1588829280'] = 'EXT:cart/Resources/Private/Partials/';
+    ExtensionUtility::configurePlugin(
+        'Cart',
+        'Order',
+        [
+            \Extcode\Cart\Controller\Order\OrderController::class => 'list, show',
+        ],
+        [
+            \Extcode\Cart\Controller\Order\OrderController::class => 'list, show',
+        ]
+    );
+})('cart');
diff --git a/ext_tables.sql b/ext_tables.sql
index acc70928..53c843d9 100644
--- a/ext_tables.sql
+++ b/ext_tables.sql
@@ -23,10 +23,10 @@ CREATE TABLE tx_cart_domain_model_order_item (
     currency_code varchar(255) DEFAULT '' NOT NULL,
     currency_sign varchar(255) DEFAULT '' NOT NULL,
     currency_translation varchar(255) DEFAULT '' NOT NULL,
-    gross double(11,2) DEFAULT '0.00' NOT NULL,
-    net double(11,2) DEFAULT '0.00' NOT NULL,
-    total_gross double(11,2) DEFAULT '0.00' NOT NULL,
-    total_net double(11,2) DEFAULT '0.00' NOT NULL,
+    gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    net decimal(17,5) DEFAULT '0.00' NOT NULL,
+    total_gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    total_net decimal(17,5) DEFAULT '0.00' NOT NULL,
 
     tax int(11) unsigned DEFAULT '0' NOT NULL,
     total_tax int(11) unsigned DEFAULT '0' NOT NULL,
@@ -81,7 +81,7 @@ CREATE TABLE tx_cart_domain_model_order_taxclass (
 
     title varchar(255) DEFAULT '' NOT NULL,
     value varchar(255) DEFAULT '' NOT NULL,
-    calc double(11,2) DEFAULT '0.00' NOT NULL,
+    calc decimal(17,5) DEFAULT '0.00' NOT NULL,
 
     INDEX `parent` (pid), INDEX `t3ver_oid` (t3ver_oid,t3ver_wsid),
 );
@@ -93,7 +93,7 @@ CREATE TABLE tx_cart_domain_model_order_tax (
     item int(11) unsigned DEFAULT '0' NOT NULL,
     record_type varchar(255) DEFAULT '' NOT NULL,
 
-    tax double(11,2) DEFAULT '0.00' NOT NULL,
+    tax decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class int(11) unsigned DEFAULT '0' NOT NULL,
 
     INDEX `parent` (pid), INDEX `t3ver_oid` (t3ver_oid,t3ver_wsid),
@@ -111,11 +111,11 @@ CREATE TABLE tx_cart_domain_model_order_product (
     sku varchar(255) DEFAULT '' NOT NULL,
     title varchar(255) DEFAULT '' NOT NULL,
     count int(11) DEFAULT '0' NOT NULL,
-    price double(11,2) DEFAULT '0.00' NOT NULL,
-    discount double(11,2) DEFAULT '0.00' NOT NULL,
-    gross double(11,2) DEFAULT '0.00' NOT NULL,
-    net double(11,2) DEFAULT '0.00' NOT NULL,
-    tax double(11,2) DEFAULT '0.00' NOT NULL,
+    price decimal(17,5) DEFAULT '0.00' NOT NULL,
+    discount decimal(17,5) DEFAULT '0.00' NOT NULL,
+    gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    net decimal(17,5) DEFAULT '0.00' NOT NULL,
+    tax decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class int(11) unsigned DEFAULT '0' NOT NULL,
 
     additional text,
@@ -134,10 +134,10 @@ CREATE TABLE tx_cart_domain_model_order_discount (
 
     title varchar(255) DEFAULT '' NOT NULL,
     code varchar(255) DEFAULT '' NOT NULL,
-    gross double(11,2) DEFAULT '0.00' NOT NULL,
-    net double(11,2) DEFAULT '0.00' NOT NULL,
+    gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    net decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class_id int(11) unsigned DEFAULT '1' NOT NULL,
-    tax double(11,2) DEFAULT '0.00' NOT NULL,
+    tax decimal(17,5) DEFAULT '0.00' NOT NULL,
 
     INDEX `parent` (pid), INDEX `t3ver_oid` (t3ver_oid,t3ver_wsid),
 );
@@ -169,9 +169,9 @@ CREATE TABLE tx_cart_domain_model_order_shipping (
     service_id int(11) DEFAULT '0' NOT NULL,
     name varchar(255) DEFAULT '' NOT NULL,
     status varchar(255) DEFAULT '0' NOT NULL,
-    gross double(11,2) DEFAULT '0.00' NOT NULL,
-    net double(11,2) DEFAULT '0.00' NOT NULL,
-    tax double(11,2) DEFAULT '0.00' NOT NULL,
+    gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    net decimal(17,5) DEFAULT '0.00' NOT NULL,
+    tax decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class int(11) unsigned DEFAULT '0' NOT NULL,
 
     note text,
@@ -190,9 +190,9 @@ CREATE TABLE tx_cart_domain_model_order_payment (
     name varchar(255) DEFAULT '' NOT NULL,
     provider varchar(255) DEFAULT '' NOT NULL,
     status varchar(255) DEFAULT '0' NOT NULL,
-    gross double(11,2) DEFAULT '0.00' NOT NULL,
-    net double(11,2) DEFAULT '0.00' NOT NULL,
-    tax double(11,2) DEFAULT '0.00' NOT NULL,
+    gross decimal(17,5) DEFAULT '0.00' NOT NULL,
+    net decimal(17,5) DEFAULT '0.00' NOT NULL,
+    tax decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class int(11) unsigned DEFAULT '0' NOT NULL,
 
     note text,
@@ -225,9 +225,9 @@ CREATE TABLE tx_cart_domain_model_coupon (
     title varchar(255) DEFAULT '' NOT NULL,
     code varchar(255) DEFAULT '' NOT NULL,
     coupon_type varchar(255) DEFAULT 'cartdiscount' NOT NULL,
-    discount double(11,2) DEFAULT '0.00' NOT NULL,
+    discount decimal(17,5) DEFAULT '0.00' NOT NULL,
     tax_class_id int(11) unsigned DEFAULT '1' NOT NULL,
-    cart_min_price double(11,2) DEFAULT '0.00' NOT NULL,
+    cart_min_price decimal(17,5) DEFAULT '0.00' NOT NULL,
     is_combinable tinyint(4) unsigned DEFAULT '0' NOT NULL,
     is_relative_discount tinyint(4) unsigned DEFAULT '0' NOT NULL,
     handle_available tinyint(4) unsigned DEFAULT '0' NOT NULL,
@@ -237,6 +237,27 @@ CREATE TABLE tx_cart_domain_model_coupon (
     INDEX `parent` (pid), INDEX `t3ver_oid` (t3ver_oid,t3ver_wsid),
 );
 
+#
+# Table structure for table 'tx_cart_domain_model_order_log'
+#
+CREATE TABLE tx_cart_domain_model_order_log (
+    uid int(11) NOT NULL auto_increment,
+    item int(11) DEFAULT '0' NOT NULL,
+    type varchar(255) DEFAULT '' NOT NULL,
+
+    request_id varchar(13) DEFAULT '' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    time_micro float DEFAULT '0' NOT NULL,
+    log_level varchar(10) DEFAULT 'info' NOT NULL,
+    level varchar(10) DEFAULT 'info' NOT NULL,
+    message text,
+    data text,
+
+    arguments mediumtext,
+
+    PRIMARY KEY (uid),
+);
+
 #
 # Table structure for table 'tx_cart_domain_model_cart'
 #
@@ -269,3 +290,4 @@ CREATE TABLE tx_cart_domain_model_tag (
 
     INDEX `parent` (pid), INDEX `t3ver_oid` (t3ver_oid,t3ver_wsid),
 );
+
diff --git a/rector.php b/rector.php
index 2c72b1d6..1ac2c13a 100644
--- a/rector.php
+++ b/rector.php
@@ -7,7 +7,6 @@
 use Rector\PostRector\Rector\NameImportingPostRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\AddVoidReturnTypeWhereNoReturnRector;
 use Rector\ValueObject\PhpVersion;
-use Ssch\TYPO3Rector\CodeQuality\General\ConvertImplicitVariablesToExplicitGlobalsRector;
 use Ssch\TYPO3Rector\CodeQuality\General\ExtEmConfRector;
 use Ssch\TYPO3Rector\CodeQuality\General\InjectMethodToConstructorInjectionRector;
 use Ssch\TYPO3Rector\Configuration\Typo3Option;
@@ -20,7 +19,6 @@
         __DIR__ . '/Classes',
         __DIR__ . '/Configuration',
         __DIR__ . '/Tests',
-        __DIR__ . '/ext_emconf.php',
         __DIR__ . '/ext_localconf.php',
     ])
     // uncomment to reach your current PHP version
@@ -29,7 +27,7 @@
     ->withSets([
         Typo3SetList::CODE_QUALITY,
         Typo3SetList::GENERAL,
-        Typo3LevelSetList::UP_TO_TYPO3_13,
+        Typo3LevelSetList::UP_TO_TYPO3_14,
     ])
     // To have a better analysis from PHPStan, we teach it here some more things
     ->withPHPStanConfigs([
@@ -37,7 +35,6 @@
     ])
     ->withRules([
         AddVoidReturnTypeWhereNoReturnRector::class,
-        ConvertImplicitVariablesToExplicitGlobalsRector::class,
     ])
     ->withConfiguredRule(ExtEmConfRector::class, [
         ExtEmConfRector::PHP_VERSION_CONSTRAINT => '8.2.0-8.4.99',
diff --git a/shell.nix b/shell.nix
index c0a30c3b..4ab74c62 100644
--- a/shell.nix
+++ b/shell.nix
@@ -19,8 +19,8 @@ let
   projectInstall = pkgs.writeShellApplication {
     name = "project-install";
     runtimeInputs = [
-      php
       composer
+      php
     ];
     text = ''
       composer update --prefer-dist --no-progress
@@ -31,11 +31,12 @@ let
     name = "project-cgl";
 
     runtimeInputs = [
+      composer
       php
     ];
 
     text = ''
-      ./.build/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --dry-run --diff
+      composer project:cgl
     '';
   };
 
@@ -43,23 +44,25 @@ let
     name = "project-cgl-fix";
 
     runtimeInputs = [
+      composer
       php
     ];
 
     text = ''
-      ./.build/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php
+      composer project:cgl:fix
     '';
   };
 
-  projectLint = pkgs.writeShellApplication {
-    name = "project-lint";
+  projectLintPhp = pkgs.writeShellApplication {
+    name = "project-lint-php";
 
     runtimeInputs = [
+      composer
       php
     ];
 
     text = ''
-      find ./*.php Classes Configuration Tests -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l
+      composer project:lint:php
     '';
   };
 
@@ -67,35 +70,38 @@ let
     name = "project-phpstan";
 
     runtimeInputs = [
+      composer
       php
     ];
 
     text = ''
-      ./.build/bin/phpstan analyse -c Build/phpstan.neon --memory-limit 256M
+      composer project:phpstan
     '';
   };
 
   projectTestUnit = pkgs.writeShellApplication {
     name = "project-test-unit";
     runtimeInputs = [
+      composer
       php
       projectInstall
     ];
     text = ''
       project-install
-      .build/bin/phpunit -c Build/UnitTests.xml --display-deprecations --display-warnings
+      composer project:test:unit
     '';
   };
 
   projectTestFunctional = pkgs.writeShellApplication {
     name = "project-test-functional";
     runtimeInputs = [
+      composer
       php
       projectInstall
     ];
     text = ''
       project-install
-      .build/bin/phpunit -c Build/FunctionalTests.xml --display-deprecations --display-warnings
+      composer project:test:functional
     '';
   };
 
@@ -105,10 +111,9 @@ in pkgs.mkShell {
     php
     composer
     projectInstall
-    projectPhpstan
     projectCgl
     projectCglFix
-    projectLint
+    projectLintPhp
     projectPhpstan
     projectTestUnit
     projectTestFunctional