diff --git a/.gitignore b/.gitignore
index 70b8535..0b1b12d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,7 @@
 /phpunit.xml
 /.phpunit.cache/
 ###< phpunit/phpunit ###
+
+###> phpstan/phpstan ###
+phpstan.neon
+###< phpstan/phpstan ###
diff --git a/.idea/php.xml b/.idea/php.xml
index 5a499ab..cf8c53a 100644
--- a/.idea/php.xml
+++ b/.idea/php.xml
@@ -120,9 +120,15 @@
       <path value="$PROJECT_DIR$/vendor/sebastian/environment" />
       <path value="$PROJECT_DIR$/vendor/sebastian/code-unit" />
       <path value="$PROJECT_DIR$/vendor/sebastian/cli-parser" />
+      <path value="$PROJECT_DIR$/vendor/phpstan/phpstan" />
     </include_path>
   </component>
   <component name="PhpProjectSharedConfiguration" php_language_level="8.2" />
+  <component name="PhpStan">
+    <PhpStan_settings>
+      <PhpStanConfiguration tool_path="$PROJECT_DIR$/vendor/bin/phpstan" />
+    </PhpStan_settings>
+  </component>
   <component name="PhpStanOptionsConfiguration">
     <option name="transferred" value="true" />
   </component>
diff --git a/.idea/symfony-skeleton.iml b/.idea/symfony-skeleton.iml
index 1445054..482391b 100644
--- a/.idea/symfony-skeleton.iml
+++ b/.idea/symfony-skeleton.iml
@@ -114,6 +114,7 @@
       <excludeFolder url="file://$MODULE_DIR$/vendor/sebastian/environment" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/sebastian/code-unit" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/sebastian/cli-parser" />
+      <excludeFolder url="file://$MODULE_DIR$/vendor/phpstan/phpstan" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/Makefile b/Makefile
index fb677aa..ab8c93e 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,9 @@ DOCKER_BUILD_COMMAND=docker build --file Dockerfile --no-cache --platform linux/
 run:
 	 $(PWD)/bin/rr -c .rr.dev.yaml serve
 
+stan:
+	vendor/bin/phpstan analyse src
+
 up:
 	$(DOCKER_BUILD_COMMAND) --build-arg APP_ENV=dev .
 	docker compose --env-file .env up -d
diff --git a/composer.json b/composer.json
index a669a03..05dc128 100644
--- a/composer.json
+++ b/composer.json
@@ -86,6 +86,7 @@
         }
     },
     "require-dev": {
+        "phpstan/phpstan": "^2.1",
         "phpunit/phpunit": "^11.5",
         "symfony/browser-kit": "7.3.*",
         "symfony/css-selector": "7.3.*",
diff --git a/composer.lock b/composer.lock
index 9ab1c24..463a559 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": "bb0d5bf7c87274180bd50cc78054e5f0",
+    "content-hash": "5b1f8e5de93f35b3a8390d46edf73f57",
     "packages": [
         {
             "name": "baldinof/roadrunner-bundle",
@@ -5951,6 +5951,64 @@
             },
             "time": "2022-02-21T01:04:05+00:00"
         },
+        {
+            "name": "phpstan/phpstan",
+            "version": "2.1.28",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan.git",
+                "reference": "578fa296a166605d97b94091f724f1257185d278"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/578fa296a166605d97b94091f724f1257185d278",
+                "reference": "578fa296a166605d97b94091f724f1257185d278",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan - PHP Static Analysis Tool",
+            "keywords": [
+                "dev",
+                "static analysis"
+            ],
+            "support": {
+                "docs": "https://phpstan.org/user-guide/getting-started",
+                "forum": "https://github.com/phpstan/phpstan/discussions",
+                "issues": "https://github.com/phpstan/phpstan/issues",
+                "security": "https://github.com/phpstan/phpstan/security/policy",
+                "source": "https://github.com/phpstan/phpstan-src"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/phpstan",
+                    "type": "github"
+                }
+            ],
+            "time": "2025-09-19T08:58:49+00:00"
+        },
         {
             "name": "phpunit/php-code-coverage",
             "version": "11.0.11",
diff --git a/src/Command/RrCommand.php b/src/Command/RrCommand.php
index 26b5013..9556a81 100644
--- a/src/Command/RrCommand.php
+++ b/src/Command/RrCommand.php
@@ -39,7 +39,7 @@ class RrCommand extends Command
                     'command' => $serviceGroupName,
                     'memory' => $serviceInstance['memory_usage'],
 
-                    'error' => $serviceInstance['error']
+                    'error' => !empty($serviceInstance['error'])
                         ? $serviceInstance['error']['message']
                         : null,
                 ];
diff --git a/src/Maker/Bundle/Bundle.tpl.php b/src/Maker/Bundle/Bundle.tpl.php
index 0d64c9d..8152a8e 100644
--- a/src/Maker/Bundle/Bundle.tpl.php
+++ b/src/Maker/Bundle/Bundle.tpl.php
@@ -2,10 +2,13 @@
 
 declare(strict_types=1);
 
+// @phpstan-ignore-next-line
 namespace <?= $namespace; ?>;
 
+// @phpstan-ignore-next-line
 <?= $use_statements; ?>
 
+// @phpstan-ignore-next-line
 final class <?= $class_name; ?> extends Bundle
 {
 
diff --git a/src/Maker/Bundle/BundleMaker.php b/src/Maker/Bundle/BundleMaker.php
index c2eead9..1d77a68 100644
--- a/src/Maker/Bundle/BundleMaker.php
+++ b/src/Maker/Bundle/BundleMaker.php
@@ -55,9 +55,8 @@ final class BundleMaker extends AbstractMaker
             );
     }
 
-    public function configureDependencies(DependencyBuilder $dependencies)
+    public function configureDependencies(DependencyBuilder $dependencies): void
     {
-        // TODO: Implement configureDependencies() method.
     }
 
     private function createBundleFile(Generator $generator, string $bundleName): void
diff --git a/symfony.lock b/symfony.lock
index c442061..5940be9 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -47,6 +47,18 @@
             "migrations/.gitignore"
         ]
     },
+    "phpstan/phpstan": {
+        "version": "2.1",
+        "recipe": {
+            "repo": "github.com/symfony/recipes-contrib",
+            "branch": "main",
+            "version": "1.0",
+            "ref": "5e490cc197fb6bb1ae22e5abbc531ddc633b6767"
+        },
+        "files": [
+            "phpstan.dist.neon"
+        ]
+    },
     "phpunit/phpunit": {
         "version": "12.3",
         "recipe": {