diff --git a/composer.json b/composer.json
index 94f863f..0490f60 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,8 @@
 		"cs:fix": "php-cs-fixer fix",
 		"psalm": "psalm --threads=1 --no-cache",
 		"test:unit": "phpunit tests -c tests/phpunit.xml --colors=always --fail-on-warning --fail-on-risky",
-		"openapi": "generate-spec"
+		"openapi": "generate-spec",
+		"rector": "rector && composer cs:fix"
 	},
 	"require": {
 		"bamarni/composer-bin-plugin": "^1.8",
diff --git a/rector.php b/rector.php
new file mode 100644
index 0000000..32a7586
--- /dev/null
+++ b/rector.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+
+return RectorConfig::configure()
+	->withPaths([
+		__DIR__ . '/lib',
+		__DIR__ . '/tests',
+	])
+	->withPhpSets(php80: true)
+	->withPreparedSets(
+		deadCode: true,
+		codeQuality: true,
+		codingStyle: true,
+		typeDeclarations: true,
+		privatization: true,
+		instanceOf: true,
+		earlyReturn: true,
+		strictBooleans: true,
+		carbon: true,
+		rectorPreset: true,
+		phpunitCodeQuality: true,
+		doctrineCodeQuality: true,
+		symfonyCodeQuality: true,
+		symfonyConfigs: true,
+		twig: true,
+		phpunit: true,
+	);
diff --git a/tests/unit/Controller/ApiTest.php b/tests/unit/Controller/ApiTest.php
index 23537f6..0bb8a45 100644
--- a/tests/unit/Controller/ApiTest.php
+++ b/tests/unit/Controller/ApiTest.php
@@ -9,8 +9,8 @@ use OCA\AppTemplate\Controller\ApiController;
 use OCP\IRequest;
 use PHPUnit\Framework\TestCase;
 
-class ApiTest extends TestCase {
-	public function testIndex() {
+final class ApiTest extends TestCase {
+	public function testIndex(): void {
 		$request = $this->createMock(IRequest::class);
 		$controller = new ApiController(Application::APP_ID, $request);
 
diff --git a/vendor-bin/rector/composer.json b/vendor-bin/rector/composer.json
new file mode 100644
index 0000000..a266a58
--- /dev/null
+++ b/vendor-bin/rector/composer.json
@@ -0,0 +1,5 @@
+{
+    "require-dev": {
+        "rector/rector": "^1.2"
+    }
+}
diff --git a/vendor-bin/rector/composer.lock b/vendor-bin/rector/composer.lock
new file mode 100644
index 0000000..94ed8dc
--- /dev/null
+++ b/vendor-bin/rector/composer.lock
@@ -0,0 +1,136 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "eb58f3061bde78d58fa424c73947025f",
+    "packages": [],
+    "packages-dev": [
+        {
+            "name": "phpstan/phpstan",
+            "version": "1.12.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan.git",
+                "reference": "ffa517cb918591b93acc9b95c0bebdcd0e4538bd"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/ffa517cb918591b93acc9b95c0bebdcd0e4538bd",
+                "reference": "ffa517cb918591b93acc9b95c0bebdcd0e4538bd",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2|^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": "2024-09-19T07:58:01+00:00"
+        },
+        {
+            "name": "rector/rector",
+            "version": "1.2.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/rectorphp/rector.git",
+                "reference": "e98aa793ca3fcd17e893cfaf9103ac049775d339"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/rectorphp/rector/zipball/e98aa793ca3fcd17e893cfaf9103ac049775d339",
+                "reference": "e98aa793ca3fcd17e893cfaf9103ac049775d339",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2|^8.0",
+                "phpstan/phpstan": "^1.12.2"
+            },
+            "conflict": {
+                "rector/rector-doctrine": "*",
+                "rector/rector-downgrade-php": "*",
+                "rector/rector-phpunit": "*",
+                "rector/rector-symfony": "*"
+            },
+            "suggest": {
+                "ext-dom": "To manipulate phpunit.xml via the custom-rule command"
+            },
+            "bin": [
+                "bin/rector"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Instant Upgrade and Automated Refactoring of any PHP code",
+            "keywords": [
+                "automation",
+                "dev",
+                "migration",
+                "refactoring"
+            ],
+            "support": {
+                "issues": "https://github.com/rectorphp/rector/issues",
+                "source": "https://github.com/rectorphp/rector/tree/1.2.5"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/tomasvotruba",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-09-08T17:43:24+00:00"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
+}