diff --git a/src/DependencyInjection/OneupFlysystemExtension.php b/src/DependencyInjection/OneupFlysystemExtension.php
index 83d9ba5..ffd3634 100644
--- a/src/DependencyInjection/OneupFlysystemExtension.php
+++ b/src/DependencyInjection/OneupFlysystemExtension.php
@@ -21,16 +21,23 @@ class OneupFlysystemExtension extends Extension
 
     public function load(array $configs, ContainerBuilder $container): void
     {
-        $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
-        $loader->load('factories.xml');
+        if (class_exists(Loader\XmlFileLoader::class)) {
+            $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
+            $loaderExt = '.xml';
+        } else {
+            $loader = new Loader\PhpFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
+            $loaderExt = '.php';
+        }
+
+        $loader->load('factories' . $loaderExt);
 
         $adapterFactories = $this->getFactories($container);
 
         $configuration = new Configuration($adapterFactories);
         $config = $this->processConfiguration($configuration, $configs);
 
-        $loader->load('adapters.xml');
-        $loader->load('flysystem.xml');
+        $loader->load('adapters' . $loaderExt);
+        $loader->load('flysystem' . $loaderExt);
 
         $adapters = [];
 
@@ -45,8 +52,13 @@ public function load(array $configs, ContainerBuilder $container): void
 
     public function getConfiguration(array $config, ContainerBuilder $container): Configuration
     {
-        $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
-        $loader->load('factories.xml');
+        if (class_exists(Loader\XmlFileLoader::class)) {
+            $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
+            $loader->load('factories.xml');
+        } else {
+            $loader = new Loader\PhpFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
+            $loader->load(resource: 'factories.php');
+        }
 
         $adapterFactories = $this->getFactories($container);
 
diff --git a/src/Resources/config/adapters.php b/src/Resources/config/adapters.php
new file mode 100644
index 0000000..f78cf64
--- /dev/null
+++ b/src/Resources/config/adapters.php
@@ -0,0 +1,84 @@
+<?php
+
+declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator->services();
+
+    $services->set('oneup_flysystem.adapter.local', League\Flysystem\Local\LocalFilesystemAdapter::class)->abstract()
+        ->args([
+            'location',
+            'VisibilityConverter',
+            'writeFlags',
+            'linkHandling',
+            'MimeTypeDetector',
+            'lazyRootCreation',
+        ])
+    ;
+
+    $services->set('oneup_flysystem.adapter.awss3v3', League\Flysystem\AwsS3V3\AwsS3V3Adapter::class)->abstract()
+        ->args([
+            'S3ClientInterface',
+            'bucket',
+            'prefix',
+            'VisibilityConverter',
+            'MimeTypeDetector',
+            'options',
+            'streamReads',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.ftp', League\Flysystem\Ftp\FtpAdapter::class)->abstract()
+        ->args([
+            'options',
+            'FtpConnectionProvider',
+            'ConnectivityChecker',
+            'VisibilityConverter',
+            'MimeTypeDetector',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.sftp', League\Flysystem\PhpseclibV3\SftpAdapter::class)->abstract()
+        ->args([
+            'options',
+            'root',
+            'VisibilityConverter',
+            'MimeTypeDetector',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.memory', League\Flysystem\InMemory\InMemoryFilesystemAdapter::class)->abstract()
+        ->args([
+            'defaultVisibility',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.async_aws_s3', League\Flysystem\AsyncAwsS3\AsyncAwsS3Adapter::class)->abstract()
+        ->args([
+            'Client',
+            'Bucket',
+            'Prefix',
+            'VisibilityConverter',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.googlecloudstorage', League\Flysystem\GoogleCloudStorage\GoogleCloudStorageAdapter::class)->abstract()
+        ->args([
+            'Client',
+            'Bucket',
+            'Prefix',
+            'VisibilityHandler',
+            'defaultVisibility',
+            'mimeTypeDetector',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.gitlab', RoyVoetman\FlysystemGitlab\GitlabAdapter::class)->abstract()
+        ->args([
+            'Client',
+            'Prefix',
+        ]);
+
+    $services->set('oneup_flysystem.adapter.azureblob', League\Flysystem\AzureBlobStorage\AzureBlobStorageAdapter::class)->abstract()
+        ->args([
+            'Client',
+            'Container',
+            'Prefix',
+        ]);
+};
diff --git a/src/Resources/config/factories.php b/src/Resources/config/factories.php
new file mode 100644
index 0000000..289ccbb
--- /dev/null
+++ b/src/Resources/config/factories.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator->services();
+
+    $services->set('oneup_flysystem.adapter_factory.local', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\LocalFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.awss3v3', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\AwsS3V3Factory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.ftp', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\FtpFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.sftp', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\SftpFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.in_memory', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\InMemoryFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.customadapter', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\CustomAdapterFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.async_aws_s3', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\AsyncAwsS3Factory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.google_cloud_storage', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\GoogleCloudStorageFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.gitlab', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\GitlabFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+
+    $services->set('oneup_flysystem.adapter_factory.azureblob', Oneup\FlysystemBundle\DependencyInjection\Factory\Adapter\AzureBlobFactory::class)
+            ->tag('oneup_flysystem.adapter_factory');
+};
diff --git a/src/Resources/config/flysystem.php b/src/Resources/config/flysystem.php
new file mode 100644
index 0000000..6387a49
--- /dev/null
+++ b/src/Resources/config/flysystem.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $services = $containerConfigurator->services();
+
+    $services->set('oneup_flysystem.mount_manager', League\Flysystem\MountManager::class)
+        ->public()
+        ->args([
+            'filesystems',
+        ])
+    ;
+
+    $services->set('oneup_flysystem.filesystem', League\Flysystem\Filesystem::class)->public()->abstract()
+        ->args([
+            'adapter',
+            'config',
+        ])
+    ;
+};