diff --git a/src/Utils/Config.php b/src/Utils/Config.php
index 8c3cc6a..14ceee9 100644
--- a/src/Utils/Config.php
+++ b/src/Utils/Config.php
@@ -3,175 +3,41 @@
 
 namespace App\Utils;
 
-use BenTools\CartesianProduct\CartesianProduct;
+use App\Utils\Config\AdapterInterface;
 
-use InvalidArgumentException;
+use \ReflectionClass;
+use \ReflectionMethod;
 
 final class Config {
-  private $basePath;
-  private $loadedContent = [];
+  private $adapter;
 
-  private function loadJson(string $fileName): void {
-    if (isset($this->loadedContent[$fileName]) === true) {
-      return;
-    }
-
-    $filePath = $this->basePath . DIRECTORY_SEPARATOR . $fileName;
-    if (! is_file($filePath)) {
-      throw new InvalidArgumentException('$fileName must be a valid file');
-    }
-
-    $raw = file_get_contents($filePath);
-    if ($raw === false) {
-      throw new InvalidArgumentException('Could not read from file');
-    }
-
-    $json = json_decode($raw, true);
-    if ($json === false) {
-      throw new InvalidArgumentException('Could not decode json data');
-    }
-
-    $this->loadedContent[$fileName] = $json;
+  public function __construct(AdapterInterface $adapter) {
+    $this->adapter = $adapter;
+    $this->methods = $this->getAdapterPublicMethods();
   }
 
-  public function __construct(string $basePath) {
-    $basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
-    if (! is_dir($basePath)) {
-      throw new InvalidArgumentException('$basePath must be a valid directory');
-    }
-
-    $this->basePath = $basePath;
-  }
+  public function __call(string $method, array $arguments): array {
+    $argument = $this->getArgument($arguments);
 
-  public function getExtensionSpecs(string $extName = null): array {
-    $this->loadJson('extensions.json');
-    if ($extName !== null) {
-      return $this->loadedContent['extensions.json'][$extName] ?? [];
+    if (in_array($method, $this->methods)) {
+      return $this->adapter->$method($argument);
     }
-
-    $extensions = array_filter(
-      $this->loadedContent['extensions.json'],
-      function (array $specs): bool {
-        return (isset($specs['disabled']) === false || $specs['disabled'] === false);
-      },
-      ARRAY_FILTER_USE_BOTH
-    );
-    ksort($extensions);
-
-    return $extensions;
-  }
-
-  public function getExtensionList(): array {
-    return array_keys($this->getExtensionSpecs());
   }
+  
+  private function getAdapterPublicMethods(): array {
+    $interface = new ReflectionClass('App\Utils\Config\AdapterInterface');
+    $reflection = $interface->getMethods(ReflectionMethod::IS_PUBLIC);
 
-  public function getExtensionUrls(): array {
-    return array_map(
-      function (array $items): string {
-        return $items['build']['url'] ?? '';
-      },
-      $this->getExtensionSpecs()
-    );
+    return array_map(function ($item) {
+      return $item->name;
+    }, $reflection);
   }
 
-  public function getOsSpecs(string $osName = null): array {
-    $this->loadJson('operating-systems.json');
-    if ($osName !== null) {
-      return $this->loadedContent['operating-systems.json'][$osName] ?? [];
+  private function getArgument($arguments): ?string {
+    if (empty($arguments)) {
+      return null;
     }
 
-    $os = array_filter(
-      $this->loadedContent['operating-systems.json'],
-      function (array $specs): bool {
-        return (isset($specs['disabled']) === false || $specs['disabled'] === false);
-      },
-      ARRAY_FILTER_USE_BOTH
-    );
-    ksort($os);
-
-    return $os;
-  }
-
-  public function getOsList(): array {
-    return array_keys($this->getOSSpecs());
-  }
-
-  public function getPhpList(): array {
-    $this->loadJson('php-versions.json');
-    $php = array_map(
-      function (array $items): string {
-        return implode('-', array_filter($items));
-      },
-      iterator_to_array(
-        new CartesianProduct(
-          [
-            $this->loadedContent['php-versions.json'],
-            ['', 'zts']
-          ]
-        )
-      )
-    );
-    sort($php);
-
-    return $php;
-  }
-
-  public function getVersionList(): array {
-    return ['pecl', 'dev'];
-  }
-
-  public function getExtensionMatrix(): array {
-    $ext = array_map(
-      function (array $items): string {
-        return implode(':', $items);
-      },
-      iterator_to_array(
-        new CartesianProduct(
-          [
-            $this->getExtensionList(),
-            $this->getVersionList()
-          ]
-        )
-      )
-    );
-    sort($ext);
-
-    return $ext;
-  }
-
-  public function getPhpMatrix(): array {
-    $php = array_map(
-      function (array $items): string {
-        return implode('-', $items);
-      },
-      iterator_to_array(
-        new CartesianProduct(
-          [
-            $this->getPhpList(),
-            $this->getOSList()
-          ]
-        )
-      )
-    );
-
-    sort($php);
-
-    return $php;
-  }
-
-  public function getBuildMatrix(): array {
-    return array_map(
-      function (array $items): string {
-        return implode('@', $items);
-      },
-      iterator_to_array(
-        new CartesianProduct(
-          [
-            $this->getExtensionMatrix(),
-            $this->getPhpMatrix()
-          ]
-        )
-      )
-    );
+    return array_shift($arguments);
   }
 }
diff --git a/src/Utils/Config/AdapterInterface.php b/src/Utils/Config/AdapterInterface.php
new file mode 100644
index 0000000..5a65bf4
--- /dev/null
+++ b/src/Utils/Config/AdapterInterface.php
@@ -0,0 +1,17 @@
+<?php
+declare(strict_types = 1);
+
+namespace App\Utils\Config;
+
+interface AdapterInterface {
+  public function getExtensionSpecs(string $extName = null): array;
+  public function getExtensionList(): array;
+  public function getExtensionUrls(): array;
+  public function getOsSpecs(string $osName = null): array;
+  public function getOsList(): array;
+  public function getPhpList(): array;
+  public function getVersionList(): array;
+  public function getExtensionMatrix(): array;
+  public function getPhpMatrix(): array;
+  public function getBuildMatrix(): array;
+}
diff --git a/src/Utils/Config/Adapters/JsonAdapter.php b/src/Utils/Config/Adapters/JsonAdapter.php
new file mode 100644
index 0000000..649b5c0
--- /dev/null
+++ b/src/Utils/Config/Adapters/JsonAdapter.php
@@ -0,0 +1,178 @@
+<?php
+declare(strict_types = 1);
+
+namespace App\Utils\Config\Adapters;
+
+use App\Utils\Config\AdapterInterface;
+use BenTools\CartesianProduct\CartesianProduct;
+
+use InvalidArgumentException;
+
+final class JsonAdapter implements AdapterInterface {
+  private $basePath;
+  private $loadedContent = [];
+
+  private function loadJson(string $fileName): void {
+    if (isset($this->loadedContent[$fileName]) === true) {
+      return;
+    }
+
+    $filePath = $this->basePath . DIRECTORY_SEPARATOR . $fileName;
+    if (! is_file($filePath)) {
+      throw new InvalidArgumentException('$fileName must be a valid file');
+    }
+
+    $raw = file_get_contents($filePath);
+    if ($raw === false) {
+      throw new InvalidArgumentException('Could not read from file');
+    }
+
+    $json = json_decode($raw, true);
+    if ($json === false) {
+      throw new InvalidArgumentException('Could not decode json data');
+    }
+
+    $this->loadedContent[$fileName] = $json;
+  }
+
+  public function __construct(string $basePath) {
+    $basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
+    if (! is_dir($basePath)) {
+      throw new InvalidArgumentException('$basePath must be a valid directory');
+    }
+
+    $this->basePath = $basePath;
+  }
+
+  public function getExtensionSpecs(string $extName = null): array {
+    $this->loadJson('extensions.json');
+    if ($extName !== null) {
+      return $this->loadedContent['extensions.json'][$extName] ?? [];
+    }
+
+    $extensions = array_filter(
+      $this->loadedContent['extensions.json'],
+      function (array $specs): bool {
+        return (isset($specs['disabled']) === false || $specs['disabled'] === false);
+      },
+      ARRAY_FILTER_USE_BOTH
+    );
+    ksort($extensions);
+
+    return $extensions;
+  }
+
+  public function getExtensionList(): array {
+    return array_keys($this->getExtensionSpecs());
+  }
+
+  public function getExtensionUrls(): array {
+    return array_map(
+      function (array $items): string {
+        return $items['build']['url'] ?? '';
+      },
+      $this->getExtensionSpecs()
+    );
+  }
+
+  public function getOSSpecs(string $osName = null): array {
+    $this->loadJson('operating-systems.json');
+    if ($osName !== null) {
+      return $this->loadedContent['operating-systems.json'][$osName] ?? [];
+    }
+
+    $os = array_filter(
+      $this->loadedContent['operating-systems.json'],
+      function (array $specs): bool {
+        return (isset($specs['disabled']) === false || $specs['disabled'] === false);
+      },
+      ARRAY_FILTER_USE_BOTH
+    );
+    ksort($os);
+
+    return $os;
+  }
+
+  public function getOSList(): array {
+    return array_keys($this->getOSSpecs());
+  }
+
+  public function getPHPList(): array {
+    $this->loadJson('php-versions.json');
+    $php = array_map(
+      function (array $items): string {
+        return implode('-', array_filter($items));
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->loadedContent['php-versions.json'],
+            ['', 'zts']
+          ]
+        )
+      )
+    );
+    sort($php);
+
+    return $php;
+  }
+
+  public function getVersionList(): array {
+    return ['pecl', 'dev'];
+  }
+
+  public function getExtensionMatrix(): array {
+    $ext = array_map(
+      function (array $items): string {
+        return implode(':', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->getExtensionList(),
+            $this->getVersionList()
+          ]
+        )
+      )
+    );
+    sort($ext);
+
+    return $ext;
+  }
+
+  public function getPHPMatrix(): array {
+    $php = array_map(
+      function (array $items): string {
+        return implode('-', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->getPHPList(),
+            $this->getOSList()
+          ]
+        )
+      )
+    );
+
+    sort($php);
+
+    return $php;
+  }
+
+  public function getBuildMatrix(): array {
+    return array_map(
+      function (array $items): string {
+        return implode('@', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->getExtensionMatrix(),
+            $this->getPHPMatrix()
+          ]
+        )
+      )
+    );
+  }
+}
diff --git a/tests/Utils/Config/Adapters/JsonAdapterTest.php b/tests/Utils/Config/Adapters/JsonAdapterTest.php
new file mode 100644
index 0000000..e60e4d9
--- /dev/null
+++ b/tests/Utils/Config/Adapters/JsonAdapterTest.php
@@ -0,0 +1,191 @@
+<?php
+declare(strict_types = 1);
+
+namespace App\Test\Utils\Config\Adapters;
+
+use App\Utils\Config\Adapters\JsonAdapter;
+use PHPUnit\Framework\TestCase;
+use BenTools\CartesianProduct\CartesianProduct;
+
+final class JsonAdapterTest extends TestCase {
+  private $adapter;
+  private $extensions;
+  private $operatingSystems;
+  private $phpVersions;
+  
+  public function setUp(): void {
+    $configPath = __DIR__ . '/../../../fixtures/config';
+    $this->adapter = new JsonAdapter($configPath);
+
+    $jsonConfig = file_get_contents($configPath . DIRECTORY_SEPARATOR . 'extensions.json');
+    $this->extensions = json_decode($jsonConfig, true);
+
+    $jsonConfig = file_get_contents($configPath . DIRECTORY_SEPARATOR . 'operating-systems.json');
+    $this->operatingSystems = json_decode($jsonConfig, true);
+
+    $jsonConfig = file_get_contents($configPath . DIRECTORY_SEPARATOR . 'php-versions.json');
+    $this->phpVersions = json_decode($jsonConfig, true);
+  }
+
+  public function testSingleExtensionSpecs(): void {
+    $this->assertEquals(
+      $this->adapter->getExtensionSpecs('amqp'),
+      $this->extensions['amqp']
+    );
+  }
+
+  public function testAllExtensionSpecs(): void {
+    $this->assertEquals(
+      $this->adapter->getExtensionSpecs(),
+      $this->extensions
+    );
+  }
+
+  public function testExtensionList(): void {
+    $expected = ['ahocorasick', 'amqp'];
+
+    $this->assertEquals(
+      $this->adapter->getExtensionList(),
+      $expected
+    );
+  }
+
+  public function testExtensionUrls(): void {
+    $expected = [
+      'ahocorasick' => 'https://github.com/ph4r05/php_aho_corasick',
+      'amqp' => 'https://github.com/php-amqp/php-amqp'
+    ];
+
+    $this->assertEquals(
+      $this->adapter->getExtensionUrls(),
+      $expected
+    );
+  }
+
+  public function testSingleOSSpecs(): void {
+    $this->assertEquals(
+      $this->adapter->getOSSpecs('alpine'),
+      $this->operatingSystems['alpine']
+    );
+  }
+
+  public function testOSSpecs(): void {
+    $expected = [
+      'buster' => $this->operatingSystems['buster']
+    ];
+
+    $this->assertEquals(
+      $this->adapter->getOSSpecs(),
+      $expected
+    );
+  }
+
+  public function testOSList(): void {
+    $expected = ['buster'];
+
+    $this->assertEquals(
+      $this->adapter->getOSList(),
+      $expected
+    );
+  }
+
+  public function testPHPList(): void {
+    $expected = array_map(
+      function (array $items): string {
+        return implode('-', array_filter($items));
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->phpVersions,
+            ['', 'zts']
+          ]
+        )
+      )
+    );
+    sort($expected);
+
+    $this->assertEquals(
+      $this->adapter->getPHPList(),
+      $expected
+    );
+  }
+
+  public function testVersionList(): void {
+    $expected = [
+      'pecl',
+      'dev'
+    ];
+
+    $this->assertEquals(
+      $this->adapter->getVersionList(),
+      $expected
+    );
+  }
+
+  public function testExtensionMatrix(): void {
+    $expected = array_map(
+      function (array $items): string {
+        return implode(':', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->adapter->getExtensionList(),
+            $this->adapter->getVersionList()
+          ]
+        )
+      )
+    );
+    sort($expected);
+
+    $this->assertEquals(
+      $this->adapter->getExtensionMatrix(),
+      $expected
+    );
+  }
+
+  public function testPHPMatrix(): void {
+    $expected = array_map(
+      function (array $items): string {
+        return implode('-', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->adapter->getPHPList(),
+            $this->adapter->getOSList()
+          ]
+        )
+      )
+    );
+    sort($expected);
+
+    $this->assertEquals(
+      $this->adapter->getPHPMatrix(),
+      $expected
+    );
+  }
+
+  public function testBuildMatrix(): void {
+    $expected = array_map(
+      function (array $items): string {
+        return implode('@', $items);
+      },
+      iterator_to_array(
+        new CartesianProduct(
+          [
+            $this->adapter->getExtensionMatrix(),
+            $this->adapter->getPHPMatrix()
+          ]
+        )
+      )
+    );
+    sort($expected);
+
+    $this->assertEquals(
+      $this->adapter->getBuildMatrix(),
+      $expected
+    );
+  }
+}
diff --git a/tests/fixtures/config/extensions.json b/tests/fixtures/config/extensions.json
new file mode 100644
index 0000000..efd12c4
--- /dev/null
+++ b/tests/fixtures/config/extensions.json
@@ -0,0 +1,32 @@
+{
+  "ahocorasick": {
+    "build": {
+      "flag": "--enable-ahocorasick",
+      "type": "git",
+      "url": "https://github.com/ph4r05/php_aho_corasick"
+    },
+    "require": {
+      "min": "7.3.99"
+    },
+    "summary": "Effective Aho-Corasick string pattern matching algorithm"
+  },
+  "amqp": {
+    "build": {
+      "deps": {
+        "alpine": [
+          "rabbitmq-c-dev"
+        ],
+        "buster": [
+          "librabbitmq-dev"
+        ]
+      },
+      "flag": "--with-amqp",
+      "type": "git",
+      "url": "https://github.com/php-amqp/php-amqp"
+    },
+    "require": {
+      "min": "5.6.0"
+    },
+    "summary": "Communicate with any AMQP compliant server"
+  }
+}
diff --git a/tests/fixtures/config/operating-systems.json b/tests/fixtures/config/operating-systems.json
new file mode 100644
index 0000000..c08e6dc
--- /dev/null
+++ b/tests/fixtures/config/operating-systems.json
@@ -0,0 +1,34 @@
+{
+  "alpine": {
+    "deps": {
+      "cmd": "apk add --no-cache",
+      "list": [
+        "git",
+        "autoconf",
+        "build-base"
+      ]
+    },
+    "disabled": true,
+    "pre": [
+      "apk update",
+      "apk upgrade"
+    ]
+  },
+  "buster": {
+    "deps": {
+      "cmd": "apt install -y --no-install-recommends",
+      "list": [
+        "git",
+        "autoconf",
+        "build-essential"
+      ]
+    },
+    "pre": [
+      "apt update",
+      "apt full-upgrade -y"
+    ],
+    "post": [
+      "rm -rf /var/lib/apt/lists/*"
+    ]
+  }
+}
diff --git a/tests/fixtures/config/php-versions.json b/tests/fixtures/config/php-versions.json
new file mode 100644
index 0000000..9b97154
--- /dev/null
+++ b/tests/fixtures/config/php-versions.json
@@ -0,0 +1,5 @@
+[
+  "7.3.25",
+  "7.4.13",
+  "8.0.0"
+]