diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
new file mode 100644
index 0000000..9871369
--- /dev/null
+++ b/phpstan-baseline.neon
@@ -0,0 +1,86 @@
+parameters:
+	ignoreErrors:
+		-
+			message: "#^Parameter \\$apply of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$applyUnsafe of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$changed of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$formatterEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$linterEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$organizeImportsEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$path of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects array\\<string\\>, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$since of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects string\\|null, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$staged of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:check\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCheckCommand.php
+
+		-
+			message: "#^Parameter \\$changed of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Parameter \\$formatterEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Parameter \\$linterEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Parameter \\$organizeImportsEnabled of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects bool, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Parameter \\$path of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects array\\<string\\>, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Parameter \\$since of method Kocal\\\\BiomeJsBundle\\\\BiomeJs\\:\\:ci\\(\\) expects string\\|null, mixed given\\.$#"
+			count: 1
+			path: src/Command/BiomeJsCiCommand.php
+
+		-
+			message: "#^Call to an undefined method Symfony\\\\Component\\\\Config\\\\Definition\\\\Builder\\\\NodeParentInterface\\:\\:end\\(\\)\\.$#"
+			count: 1
+			path: src/DependencyInjection/BiomeJsExtension.php
+
+		-
+			message: "#^Method Kocal\\\\BiomeJsBundle\\\\DependencyInjection\\\\BiomeJsExtension\\:\\:getConfiguration\\(\\) has parameter \\$config with no value type specified in iterable type array\\.$#"
+			count: 1
+			path: src/DependencyInjection/BiomeJsExtension.php
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index c7a5610..24a0319 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,3 +1,6 @@
+includes:
+    - phpstan-baseline.neon
+
 parameters:
     level: max
 
diff --git a/src/DependencyInjection/BiomeJsExtension.php b/src/DependencyInjection/BiomeJsExtension.php
index bbbc736..269cc05 100644
--- a/src/DependencyInjection/BiomeJsExtension.php
+++ b/src/DependencyInjection/BiomeJsExtension.php
@@ -20,13 +20,14 @@ public function load(array $configs, ContainerBuilder $container)
         $loader->load('services.php');
 
         $configuration = $this->getConfiguration($configs, $container);
+        /** @var array<string> $config */
         $config = $this->processConfiguration($configuration, $configs);
 
         $container->getDefinition('biomejs.binary')
             ->setArgument(2, $config['binary_version']);
     }
 
-    public function getConfiguration(array $config, ContainerBuilder $container): ?ConfigurationInterface
+    public function getConfiguration(array $config, ContainerBuilder $container): ConfigurationInterface
     {
         return $this;
     }