diff --git a/composer.json b/composer.json
index 85047e2..846f3c2 100644
--- a/composer.json
+++ b/composer.json
@@ -8,14 +8,13 @@
     },
     "require": {
         "php": " >=8.3",
-        "ibexa/core": "~5.0.x-dev",
-        "ibexa/design-engine": "~5.0.x-dev",
-        "symfony/http-kernel": "^5.0"
+        "ibexa/core": "dev-ibx-8470-symfony-6 as 5.0.x-dev",
+        "ibexa/design-engine": "dev-ibx-8470-symfony-6 as 5.0.x-dev",
+        "symfony/http-kernel": "^6.4"
     },
     "require-dev": {
-        "ibexa/ci-scripts": "^0.2@dev",
         "ibexa/code-style": "~2.0.0",
-        "ibexa/doctrine-schema": "~5.0.x-dev",
+        "ibexa/doctrine-schema": "dev-ibx-8470-symfony-6 as 5.0.x-dev",
         "matthiasnoback/symfony-dependency-injection-test": "^4.1",
         "phpunit/phpunit": "^9.6"
     },
diff --git a/src/bundle/DependencyInjection/Compiler/KernelOverridePass.php b/src/bundle/DependencyInjection/Compiler/KernelOverridePass.php
index 0c2fdde..aab5f28 100644
--- a/src/bundle/DependencyInjection/Compiler/KernelOverridePass.php
+++ b/src/bundle/DependencyInjection/Compiler/KernelOverridePass.php
@@ -22,11 +22,9 @@ class KernelOverridePass implements CompilerPassInterface
     /**
      * Load Standard Design configuration which overrides Ibexa DXP Core setup.
      *
-     * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
-     *
      * @throws \Exception
      */
-    public function process(ContainerBuilder $container)
+    public function process(ContainerBuilder $container): void
     {
         $overrideTemplates = $container->getParameter(
             IbexaStandardDesignExtension::OVERRIDE_KERNEL_TEMPLATES_PARAM_NAME
@@ -36,7 +34,7 @@ public function process(ContainerBuilder $container)
                 $container,
                 new FileLocator(__DIR__ . '/../../Resources/config')
             );
-            $loader->load('override/ezpublish.yaml');
+            $loader->load('override/ibexa.yaml');
         }
 
         $this->setStandardThemeDirectories($container);
@@ -47,7 +45,7 @@ public function process(ContainerBuilder $container)
      *
      * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
      */
-    private function setStandardThemeDirectories(ContainerBuilder $container)
+    private function setStandardThemeDirectories(ContainerBuilder $container): void
     {
         if (!$container->hasParameter('kernel.bundles_metadata')) {
             return;
@@ -59,6 +57,7 @@ private function setStandardThemeDirectories(ContainerBuilder $container)
             return;
         }
 
+        /** @var array<string, string[]>  $templatesPathMap */
         $templatesPathMap = $container->hasParameter('ibexa.design.templates.path_map')
             ? $container->getParameter('ibexa.design.templates.path_map')
             : [];
diff --git a/src/bundle/DependencyInjection/Compiler/StandardThemePass.php b/src/bundle/DependencyInjection/Compiler/StandardThemePass.php
index d528888..4042bdc 100644
--- a/src/bundle/DependencyInjection/Compiler/StandardThemePass.php
+++ b/src/bundle/DependencyInjection/Compiler/StandardThemePass.php
@@ -21,18 +21,17 @@ class StandardThemePass implements CompilerPassInterface
      *
      * Standard theme defines default core templates used for rendering, so when different design
      * is used, missing template still needs to be rendered using fallback.
-     *
-     * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
      */
-    public function process(ContainerBuilder $container)
+    public function process(ContainerBuilder $container): void
     {
         if (!$container->hasParameter('ibexa.design.list')) {
             return;
         }
 
+        /** @var array<string, string[]> $designList */
         $designList = $container->getParameter('ibexa.design.list');
         foreach ($designList as $designName => $themes) {
-            if (!in_array('standard', $themes)) {
+            if (!in_array('standard', $themes, true)) {
                 $designList[$designName][] = 'standard';
             }
         }
diff --git a/src/bundle/DependencyInjection/Configuration.php b/src/bundle/DependencyInjection/Configuration.php
index ff68dd7..9e59c3b 100644
--- a/src/bundle/DependencyInjection/Configuration.php
+++ b/src/bundle/DependencyInjection/Configuration.php
@@ -13,11 +13,6 @@
 
 class Configuration implements ConfigurationInterface
 {
-    /**
-     * Generate Configuration for Ibexa DXP Standard Design.
-     *
-     * @return \Symfony\Component\Config\Definition\Builder\TreeBuilder The tree builder
-     */
     public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder(IbexaStandardDesignExtension::EXTENSION_NAME);
diff --git a/src/bundle/DependencyInjection/IbexaStandardDesignExtension.php b/src/bundle/DependencyInjection/IbexaStandardDesignExtension.php
index 8543121..b1fc9d2 100644
--- a/src/bundle/DependencyInjection/IbexaStandardDesignExtension.php
+++ b/src/bundle/DependencyInjection/IbexaStandardDesignExtension.php
@@ -16,9 +16,9 @@
 
 class IbexaStandardDesignExtension extends Extension implements PrependExtensionInterface
 {
-    public const EXTENSION_NAME = 'ibexa_standard_design';
+    public const string EXTENSION_NAME = 'ibexa_standard_design';
 
-    public const OVERRIDE_KERNEL_TEMPLATES_PARAM_NAME = 'ibexa.design.standard.override_kernel_templates';
+    public const string OVERRIDE_KERNEL_TEMPLATES_PARAM_NAME = 'ibexa.design.standard.override_kernel_templates';
 
     public function getAlias(): string
     {
@@ -26,14 +26,9 @@ public function getAlias(): string
     }
 
     /**
-     * Load Bundle Configuration.
-     *
-     * @param array $configs
-     * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
-     *
      * @throws \Exception
      */
-    public function load(array $configs, ContainerBuilder $container)
+    public function load(array $configs, ContainerBuilder $container): void
     {
         $configuration = new Configuration();
 
@@ -48,13 +43,11 @@ public function load(array $configs, ContainerBuilder $container)
     /**
      * Allow an extension to prepend the extension configurations.
      *
-     * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
-     *
      * @throws \Exception
      */
-    public function prepend(ContainerBuilder $container)
+    public function prepend(ContainerBuilder $container): void
     {
-        $this->prependEzDesignSettings($container);
+        $this->prependIbexaDesignSettings($container);
     }
 
     /**
@@ -62,9 +55,9 @@ public function prepend(ContainerBuilder $container)
      *
      * @param \Symfony\Component\DependencyInjection\ContainerBuilder $containerBuilder
      */
-    private function prependEzDesignSettings(ContainerBuilder $containerBuilder)
+    private function prependIbexaDesignSettings(ContainerBuilder $containerBuilder): void
     {
-        $configFile = __DIR__ . '/../Resources/config/extension/ezdesign.yaml';
+        $configFile = __DIR__ . '/../Resources/config/extension/ibexa_design_engine.yaml';
         $config = Yaml::parseFile($configFile);
         $containerBuilder->prependExtensionConfig('ibexa_design_engine', $config);
         $containerBuilder->addResource(new FileResource($configFile));
diff --git a/src/bundle/IbexaStandardDesignBundle.php b/src/bundle/IbexaStandardDesignBundle.php
index 3eea4e8..5932170 100644
--- a/src/bundle/IbexaStandardDesignBundle.php
+++ b/src/bundle/IbexaStandardDesignBundle.php
@@ -19,7 +19,7 @@
  */
 class IbexaStandardDesignBundle extends Bundle
 {
-    public function build(ContainerBuilder $container)
+    public function build(ContainerBuilder $container): void
     {
         parent::build($container);
 
diff --git a/src/bundle/Resources/config/extension/ezdesign.yaml b/src/bundle/Resources/config/extension/ibexa_design_engine.yaml
similarity index 100%
rename from src/bundle/Resources/config/extension/ezdesign.yaml
rename to src/bundle/Resources/config/extension/ibexa_design_engine.yaml
diff --git a/src/bundle/Resources/config/override/ezpublish.yaml b/src/bundle/Resources/config/override/ibexa.yaml
similarity index 100%
rename from src/bundle/Resources/config/override/ezpublish.yaml
rename to src/bundle/Resources/config/override/ibexa.yaml
diff --git a/src/contracts/.gitkeep b/src/contracts/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/src/lib/.gitkeep b/src/lib/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/tests/bundle/DependencyInjection/EzPlatformStandardDesignExtensionTest.php b/tests/bundle/DependencyInjection/IbexaStandardDesignExtensionTest.php
similarity index 83%
rename from tests/bundle/DependencyInjection/EzPlatformStandardDesignExtensionTest.php
rename to tests/bundle/DependencyInjection/IbexaStandardDesignExtensionTest.php
index f3b2bbe..3a8ffa3 100644
--- a/tests/bundle/DependencyInjection/EzPlatformStandardDesignExtensionTest.php
+++ b/tests/bundle/DependencyInjection/IbexaStandardDesignExtensionTest.php
@@ -11,7 +11,10 @@
 use Ibexa\Bundle\StandardDesign\DependencyInjection\IbexaStandardDesignExtension;
 use Matthias\SymfonyDependencyInjectionTest\PhpUnit\AbstractExtensionTestCase;
 
-class EzPlatformStandardDesignExtensionTest extends AbstractExtensionTestCase
+/**
+ * @covers \Ibexa\Bundle\StandardDesign\DependencyInjection\IbexaStandardDesignExtension
+ */
+final class IbexaStandardDesignExtensionTest extends AbstractExtensionTestCase
 {
     protected function getContainerExtensions(): array
     {
@@ -20,7 +23,7 @@ protected function getContainerExtensions(): array
         ];
     }
 
-    public function testExtensionPrependsStandardDesignSettings()
+    public function testExtensionPrependsStandardDesignSettings(): void
     {
         $this->load();
 
diff --git a/tests/lib/.gitkeep b/tests/lib/.gitkeep
new file mode 100644
index 0000000..e69de29