diff --git a/composer.json b/composer.json
index 7379d12..194c5d1 100644
--- a/composer.json
+++ b/composer.json
@@ -32,10 +32,5 @@
         "phpunit/phpunit": "9.6.*",
         "laravel/pint": "1.13.*",
         "phpstan/phpstan": "1.10.*"
-    },
-    "config": {
-        "platform": {
-            "php": "8.0"
-        }
     }
 }
diff --git a/composer.lock b/composer.lock
index c8a8c55..214bae0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "345bd4d4441c382f36951e3260c466da",
+    "content-hash": "5c33c217017df015ec976058ed455a1c",
     "packages": [],
     "packages-dev": [
         {
@@ -145,16 +145,16 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.11.1",
+            "version": "1.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "7284c22080590fb39f2ffa3e9057f10a4ddd0e0c"
+                "reference": "3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/7284c22080590fb39f2ffa3e9057f10a4ddd0e0c",
-                "reference": "7284c22080590fb39f2ffa3e9057f10a4ddd0e0c",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c",
+                "reference": "3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c",
                 "shasum": ""
             },
             "require": {
@@ -162,11 +162,12 @@
             },
             "conflict": {
                 "doctrine/collections": "<1.6.8",
-                "doctrine/common": "<2.13.3 || >=3,<3.2.2"
+                "doctrine/common": "<2.13.3 || >=3 <3.2.2"
             },
             "require-dev": {
                 "doctrine/collections": "^1.6.8",
                 "doctrine/common": "^2.13.3 || ^3.2.2",
+                "phpspec/prophecy": "^1.10",
                 "phpunit/phpunit": "^7.5.20 || ^8.5.23 || ^9.5.13"
             },
             "type": "library",
@@ -192,7 +193,7 @@
             ],
             "support": {
                 "issues": "https://github.com/myclabs/DeepCopy/issues",
-                "source": "https://github.com/myclabs/DeepCopy/tree/1.11.1"
+                "source": "https://github.com/myclabs/DeepCopy/tree/1.12.0"
             },
             "funding": [
                 {
@@ -200,20 +201,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-03-08T13:26:56+00:00"
+            "time": "2024-06-12T14:39:25+00:00"
         },
         {
             "name": "nikic/php-parser",
-            "version": "v5.0.2",
+            "version": "v5.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "139676794dc1e9231bf7bcd123cfc0c99182cb13"
+                "reference": "8eea230464783aa9671db8eea6f8c6ac5285794b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/139676794dc1e9231bf7bcd123cfc0c99182cb13",
-                "reference": "139676794dc1e9231bf7bcd123cfc0c99182cb13",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/8eea230464783aa9671db8eea6f8c6ac5285794b",
+                "reference": "8eea230464783aa9671db8eea6f8c6ac5285794b",
                 "shasum": ""
             },
             "require": {
@@ -224,7 +225,7 @@
             },
             "require-dev": {
                 "ircmaxell/php-yacc": "^0.0.7",
-                "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0"
+                "phpunit/phpunit": "^9.0"
             },
             "bin": [
                 "bin/php-parse"
@@ -256,9 +257,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v5.0.2"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v5.3.1"
             },
-            "time": "2024-03-05T20:51:40+00:00"
+            "time": "2024-10-08T18:51:32+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -380,16 +381,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.10.66",
+            "version": "1.10.67",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "94779c987e4ebd620025d9e5fdd23323903950bd"
+                "reference": "16ddbe776f10da6a95ebd25de7c1dbed397dc493"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/94779c987e4ebd620025d9e5fdd23323903950bd",
-                "reference": "94779c987e4ebd620025d9e5fdd23323903950bd",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/16ddbe776f10da6a95ebd25de7c1dbed397dc493",
+                "reference": "16ddbe776f10da6a95ebd25de7c1dbed397dc493",
                 "shasum": ""
             },
             "require": {
@@ -432,45 +433,41 @@
                 {
                     "url": "https://github.com/phpstan",
                     "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
-                    "type": "tidelift"
                 }
             ],
-            "time": "2024-03-28T16:17:31+00:00"
+            "time": "2024-04-16T07:22:02+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "9.2.31",
+            "version": "9.2.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "48c34b5d8d983006bd2adc2d0de92963b9155965"
+                "reference": "85402a822d1ecf1db1096959413d35e1c37cf1a5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/48c34b5d8d983006bd2adc2d0de92963b9155965",
-                "reference": "48c34b5d8d983006bd2adc2d0de92963b9155965",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/85402a822d1ecf1db1096959413d35e1c37cf1a5",
+                "reference": "85402a822d1ecf1db1096959413d35e1c37cf1a5",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-libxml": "*",
                 "ext-xmlwriter": "*",
-                "nikic/php-parser": "^4.18 || ^5.0",
+                "nikic/php-parser": "^4.19.1 || ^5.1.0",
                 "php": ">=7.3",
-                "phpunit/php-file-iterator": "^3.0.3",
-                "phpunit/php-text-template": "^2.0.2",
-                "sebastian/code-unit-reverse-lookup": "^2.0.2",
-                "sebastian/complexity": "^2.0",
-                "sebastian/environment": "^5.1.2",
-                "sebastian/lines-of-code": "^1.0.3",
-                "sebastian/version": "^3.0.1",
-                "theseer/tokenizer": "^1.2.0"
+                "phpunit/php-file-iterator": "^3.0.6",
+                "phpunit/php-text-template": "^2.0.4",
+                "sebastian/code-unit-reverse-lookup": "^2.0.3",
+                "sebastian/complexity": "^2.0.3",
+                "sebastian/environment": "^5.1.5",
+                "sebastian/lines-of-code": "^1.0.4",
+                "sebastian/version": "^3.0.2",
+                "theseer/tokenizer": "^1.2.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^9.3"
+                "phpunit/phpunit": "^9.6"
             },
             "suggest": {
                 "ext-pcov": "PHP extension that provides line coverage",
@@ -479,7 +476,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "9.2-dev"
+                    "dev-main": "9.2.x-dev"
                 }
             },
             "autoload": {
@@ -508,7 +505,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
                 "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/9.2.31"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/9.2.32"
             },
             "funding": [
                 {
@@ -516,7 +513,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-03-02T06:37:42+00:00"
+            "time": "2024-08-22T04:23:01+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -761,45 +758,45 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.6.18",
+            "version": "9.6.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "32c2c2d6580b1d8ab3c10b1e9e4dc263cc69bb04"
+                "reference": "de6abf3b6f8dd955fac3caad3af7a9504e8c2ffa"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/32c2c2d6580b1d8ab3c10b1e9e4dc263cc69bb04",
-                "reference": "32c2c2d6580b1d8ab3c10b1e9e4dc263cc69bb04",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/de6abf3b6f8dd955fac3caad3af7a9504e8c2ffa",
+                "reference": "de6abf3b6f8dd955fac3caad3af7a9504e8c2ffa",
                 "shasum": ""
             },
             "require": {
-                "doctrine/instantiator": "^1.3.1 || ^2",
+                "doctrine/instantiator": "^1.5.0 || ^2",
                 "ext-dom": "*",
                 "ext-json": "*",
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "ext-xml": "*",
                 "ext-xmlwriter": "*",
-                "myclabs/deep-copy": "^1.10.1",
-                "phar-io/manifest": "^2.0.3",
-                "phar-io/version": "^3.0.2",
+                "myclabs/deep-copy": "^1.12.0",
+                "phar-io/manifest": "^2.0.4",
+                "phar-io/version": "^3.2.1",
                 "php": ">=7.3",
-                "phpunit/php-code-coverage": "^9.2.28",
-                "phpunit/php-file-iterator": "^3.0.5",
+                "phpunit/php-code-coverage": "^9.2.32",
+                "phpunit/php-file-iterator": "^3.0.6",
                 "phpunit/php-invoker": "^3.1.1",
-                "phpunit/php-text-template": "^2.0.3",
-                "phpunit/php-timer": "^5.0.2",
-                "sebastian/cli-parser": "^1.0.1",
-                "sebastian/code-unit": "^1.0.6",
+                "phpunit/php-text-template": "^2.0.4",
+                "phpunit/php-timer": "^5.0.3",
+                "sebastian/cli-parser": "^1.0.2",
+                "sebastian/code-unit": "^1.0.8",
                 "sebastian/comparator": "^4.0.8",
-                "sebastian/diff": "^4.0.3",
-                "sebastian/environment": "^5.1.3",
-                "sebastian/exporter": "^4.0.5",
-                "sebastian/global-state": "^5.0.1",
-                "sebastian/object-enumerator": "^4.0.3",
-                "sebastian/resource-operations": "^3.0.3",
-                "sebastian/type": "^3.2",
+                "sebastian/diff": "^4.0.6",
+                "sebastian/environment": "^5.1.5",
+                "sebastian/exporter": "^4.0.6",
+                "sebastian/global-state": "^5.0.7",
+                "sebastian/object-enumerator": "^4.0.4",
+                "sebastian/resource-operations": "^3.0.4",
+                "sebastian/type": "^3.2.1",
                 "sebastian/version": "^3.0.2"
             },
             "suggest": {
@@ -844,7 +841,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.6.18"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.6.21"
             },
             "funding": [
                 {
@@ -860,7 +857,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-03-21T12:07:32+00:00"
+            "time": "2024-09-19T10:50:18+00:00"
         },
         {
             "name": "sebastian/cli-parser",
@@ -1878,15 +1875,12 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
         "php": ">=8.0.0"
     },
-    "platform-dev": [],
-    "platform-overrides": {
-        "php": "8.0"
-    },
+    "platform-dev": {},
     "plugin-api-version": "2.6.0"
 }
diff --git a/src/System/System.php b/src/System/System.php
index c40034c..fb5e5cc 100644
--- a/src/System/System.php
+++ b/src/System/System.php
@@ -262,6 +262,21 @@ public static function getCPUUsage(int $duration = 1): float
         }
     }
 
+    private static function getProcMemoryInfo(string $field): int
+    {
+        $memInfo = file_get_contents('/proc/meminfo');
+        if (!$memInfo) {
+            throw new Exception('Unable to read /proc/meminfo');
+        }
+
+        preg_match(sprintf('/%s:\s+(\d+)/', $field), $memInfo, $matches);
+        if (isset($matches[1])) {
+            return intval(intval($matches[1]) / 1024);
+        } else {
+            throw new Exception("Unable to find {$field} in /proc/meminfo.");
+        }
+    }
+
     /**
      * Returns the total amount of RAM available on the system as Megabytes.
      *
@@ -273,19 +288,7 @@ public static function getMemoryTotal(): int
     {
         switch (self::getOS()) {
             case 'Linux':
-                $memInfo = file_get_contents('/proc/meminfo');
-
-                if (!$memInfo) {
-                    throw new Exception('Unable to read /proc/meminfo');
-                }
-                preg_match('/MemTotal:\s+(\d+)/', $memInfo, $matches);
-
-                if (isset($matches[1])) {
-                    return intval(intval($matches[1]) / 1024);
-                } else {
-                    throw new Exception('Unable to find memtotal in /proc/meminfo.');
-                }
-                // no break
+                return self::getProcMemoryInfo("MemTotal");
             case 'Darwin':
                 return intval((intval(shell_exec('sysctl -n hw.memsize'))) / 1024 / 1024);
             default:
@@ -304,19 +307,7 @@ public static function getMemoryFree(): int
     {
         switch (self::getOS()) {
             case 'Linux':
-                $meminfo = file_get_contents('/proc/meminfo');
-
-                if (!$meminfo) {
-                    throw new Exception('Unable to read /proc/meminfo');
-                }
-
-                preg_match('/MemFree:\s+(\d+)/', $meminfo, $matches);
-                if (isset($matches[1])) {
-                    return intval(intval($matches[1]) / 1024);
-                } else {
-                    throw new Exception('Could not find MemFree in /proc/meminfo.');
-                }
-                // no break
+                return self::getProcMemoryInfo("MemFree");
             case 'Darwin':
                 return intval(intval(shell_exec('sysctl -n vm.page_free_count')) / 1024 / 1024);
             default:
@@ -324,6 +315,25 @@ public static function getMemoryFree(): int
         }
     }
 
+    /**
+     * Returns the total amount of Available RAM on the system as Megabytes.
+     *
+     * @return int
+     *
+     * @throws Exception
+     */
+    public static function getMemoryAvailable(): int
+    {
+        switch (self::getOS()) {
+            case 'Linux':
+                return self::getProcMemoryInfo("MemAvailable");
+            case 'Darwin':
+                throw new Exception(self::getOS().' not supported.');
+            default:
+                throw new Exception(self::getOS().' not supported.');
+        }
+    }
+
     /**
      * Returns the total amount of Disk space on the system as Megabytes.
      *
@@ -331,9 +341,9 @@ public static function getMemoryFree(): int
      *
      * @throws Exception
      */
-    public static function getDiskTotal(): int
+    public static function getDiskTotal(string $directory = __DIR__): int
     {
-        $totalSpace = disk_total_space(__DIR__);
+        $totalSpace = disk_total_space($directory);
 
         if ($totalSpace === false) {
             throw new Exception('Unable to get disk space');
@@ -349,9 +359,9 @@ public static function getDiskTotal(): int
      *
      * @throws Exception
      */
-    public static function getDiskFree(): int
+    public static function getDiskFree(string $directory = __DIR__): int
     {
-        $totalSpace = disk_free_space(__DIR__);
+        $totalSpace = disk_free_space($directory);
 
         if ($totalSpace === false) {
             throw new Exception('Unable to get free disk space');
diff --git a/tests/System/SystemTest.php b/tests/System/SystemTest.php
index 0ede284..b254546 100644
--- a/tests/System/SystemTest.php
+++ b/tests/System/SystemTest.php
@@ -93,6 +93,16 @@ public function testGetMemoryFree(): void
         }
     }
 
+    public function testGetMemoryAvailable(): void
+    {
+        if (System::getOS() === 'Linux') {
+            $this->assertIsInt(System::getMemoryAvailable());
+        } else {
+            $this->expectException('Exception');
+            System::getMemoryFree();
+        }
+    }
+
     public function testGetIOUsage(): void
     {
         if (System::getOS() === 'Linux') {