diff --git a/composer.json b/composer.json
index 7cb4f85..188cc48 100644
--- a/composer.json
+++ b/composer.json
@@ -63,11 +63,11 @@
 	"scripts": {
 		"fix-lint": [
 			"@composer bin c-norm normalize \"$(pwd)/composer.json\" --indent-style tab --indent-size 1 --ansi",
-			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer fix --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
+			"PHP_CS_FIXER_IGNORE_ENV=1 vendor-bin/cs-fixer/vendor/bin/php-cs-fixer fix --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
 		],
 		"lint": [
 			"@composer bin c-norm normalize \"$(pwd)/composer.json\" --indent-style tab --indent-size 1 --dry-run --ansi",
-			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer check --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
+			"PHP_CS_FIXER_IGNORE_ENV=1 vendor-bin/cs-fixer/vendor/bin/php-cs-fixer check --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
 		],
 		"test": [
 			"simple-phpunit",
diff --git a/phpstan.neon b/phpstan.neon
index 7b95bf7..c97c69f 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,6 +1,8 @@
 includes:
 	- vendor/21torr/janus/phpstan/lib.neon
 
+# If you use simple-phpunit, you need to uncomment the following line.
+# Always make sure to first run simple-phpunit and then PHPStan.
 parameters:
 	bootstrapFiles:
 		- vendor/bin/.phpunit/phpunit/vendor/autoload.php
diff --git a/src/Console/ChainOutput.php b/src/Console/ChainOutput.php
index 7a3b5da..d2db651 100644
--- a/src/Console/ChainOutput.php
+++ b/src/Console/ChainOutput.php
@@ -25,8 +25,9 @@ public function __construct (
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function write (iterable|string $messages, bool $newline = false, int $options = 0) : void
 	{
 		$this->bufferedOutput->write($messages, $newline, $options);
@@ -34,8 +35,9 @@ public function write (iterable|string $messages, bool $newline = false, int $op
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function writeln (iterable|string $messages, int $options = 0) : void
 	{
 		$this->bufferedOutput->writeln($messages, $options);
@@ -43,8 +45,9 @@ public function writeln (iterable|string $messages, int $options = 0) : void
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function setVerbosity (int $level) : void
 	{
 		$this->bufferedOutput->setVerbosity($level);
@@ -52,48 +55,62 @@ public function setVerbosity (int $level) : void
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function getVerbosity () : int
 	{
 		return $this->bufferedOutput->getVerbosity();
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function isQuiet () : bool
 	{
 		return $this->bufferedOutput->isQuiet();
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function isVerbose () : bool
 	{
 		return $this->bufferedOutput->isVerbose();
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function isVeryVerbose () : bool
 	{
 		return $this->bufferedOutput->isVeryVerbose();
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function isDebug () : bool
 	{
 		return $this->bufferedOutput->isDebug();
 	}
 
 	/**
-	 * @inheritDoc
+	 *
+	 */
+	public function isSilent() : bool
+	{
+		return $this->bufferedOutput->isSilent();
+	}
+
+	/**
+	 *
 	 */
+	#[\Override]
 	public function setDecorated (bool $decorated) : void
 	{
 		$this->bufferedOutput->setDecorated(true);
@@ -101,13 +118,17 @@ public function setDecorated (bool $decorated) : void
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function isDecorated () : bool
 	{
 		return $this->bufferedOutput->isDecorated();
 	}
 
+	/**
+	 *
+	 */
 	public function setFormatter (OutputFormatterInterface $formatter) : void
 	{
 		$this->bufferedOutput->setFormatter($formatter);
@@ -115,8 +136,9 @@ public function setFormatter (OutputFormatterInterface $formatter) : void
 	}
 
 	/**
-	 * @inheritDoc
+	 *
 	 */
+	#[\Override]
 	public function getFormatter () : OutputFormatterInterface
 	{
 		return $this->bufferedOutput->getFormatter();