diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..db6e8d8
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,40 @@
+name: CI
+on: [push, pull_request]
+
+jobs:
+    tests:
+        name: PHPUnit PHP ${{ matrix.php }} ${{ matrix.dependency }} (Symfony ${{ matrix.symfony }})
+        runs-on: ubuntu-22.04
+        strategy:
+            matrix:
+                php:
+                    - '8.1'
+                    - '8.2'
+                    - '8.3'
+                symfony:
+                    - '5.4.*'
+                    - '6.4.*'
+            fail-fast: true
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+
+            - name: Setup PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: ${{ matrix.php }}
+
+            - name: Configure Symfony
+              run: composer config extra.symfony.require "${{ matrix.symfony }}"
+
+            - name: Update project dependencies
+              run: composer update --no-progress --ansi --prefer-stable
+
+            - name: Validate composer
+              run: composer validate --strict --no-check-lock
+
+            - name: PHP-CS-Fixer
+              run: vendor/bin/php-cs-fixer check -vv
+
+            - name: PHPStan
+              run: vendor/bin/phpstan analyse
diff --git a/.gitignore b/.gitignore
index ed1d790..c2de9e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 composer.lock
 composer.phar
+.php_cs.cache
 /vendor
 
 # Other
diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
new file mode 100644
index 0000000..18c3340
--- /dev/null
+++ b/.php-cs-fixer.dist.php
@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+$finder = PhpCsFixer\Finder::create()
+    ->in(__DIR__)
+;
+
+return Retailcrm\PhpCsFixer\Defaults::rules([
+        'no_trailing_whitespace_in_string' => false,
+    ])
+    ->setFinder($finder)
+    ->setCacheFile(__DIR__ . '/.php_cs.cache/results')
+;
diff --git a/Annotations/CustomIndex.php b/Annotations/CustomIndex.php
index cb829dd..7cfbfe9 100644
--- a/Annotations/CustomIndex.php
+++ b/Annotations/CustomIndex.php
@@ -6,6 +6,7 @@
 
 /**
  * @deprecated left only for automatic conversion of annotations to attributes
+ *
  * @Annotation
  * @Target("ANNOTATION")
  *
@@ -47,5 +48,4 @@ class CustomIndex extends Annotation
      * @var array
      */
     public $columns;
-
 }
diff --git a/Annotations/CustomIndexes.php b/Annotations/CustomIndexes.php
index 4b9cdd3..878a536 100644
--- a/Annotations/CustomIndexes.php
+++ b/Annotations/CustomIndexes.php
@@ -6,6 +6,7 @@
 
 /**
  * @deprecated left only for automatic conversion of annotations to attributes
+ *
  * @Annotation
  * @Target("CLASS")
  */
@@ -13,11 +14,11 @@ class CustomIndexes extends Annotation
 {
     /**
      * @CustomIndexes(indexes=[
+     *
      *     @CustomIndex(...),
      *     @CustomIndex(...),
      *     ...
      * ])
-    **/
+     **/
     public $indexes = [];
-     
 }
diff --git a/Command/IndexUpdateCommand.php b/Command/IndexUpdateCommand.php
index f21e28e..3a30cf7 100644
--- a/Command/IndexUpdateCommand.php
+++ b/Command/IndexUpdateCommand.php
@@ -1,13 +1,14 @@
 <?php
+
 namespace Intaro\CustomIndexBundle\Command;
 
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Platforms\PostgreSQLPlatform;
 use Doctrine\ORM\EntityManagerInterface;
-use Intaro\CustomIndexBundle\DTO\CustomIndex;
-use Intaro\CustomIndexBundle\Metadata\ReaderInterface;
 use Intaro\CustomIndexBundle\DBAL\ExtendedPlatform;
 use Intaro\CustomIndexBundle\DBAL\QueryExecutor;
+use Intaro\CustomIndexBundle\DTO\CustomIndex;
+use Intaro\CustomIndexBundle\Metadata\ReaderInterface;
 use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
@@ -20,15 +21,15 @@ class IndexUpdateCommand extends Command
 {
     private const DUMP_SQL_OPTION = 'dump-sql';
 
-    private ?InputInterface $input;
-    private ?OutputInterface $output;
+    private InputInterface $input;
+    private OutputInterface $output;
 
     public function __construct(
         private readonly ValidatorInterface $validator,
         private readonly EntityManagerInterface $em,
         private readonly ReaderInterface $reader,
         private readonly QueryExecutor $queryExecutor,
-        private readonly bool $searchInAllSchemas
+        private readonly bool $searchInAllSchemas,
     ) {
         parent::__construct();
     }
@@ -56,7 +57,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     }
 
     /**
-     * @param array<string> $indexesNames
+     * @param array<string>              $indexesNames
      * @param array<string, CustomIndex> $customIndexes
      */
     private function createIndexes(array $indexesNames, array $customIndexes, ExtendedPlatform $platform): void
@@ -69,12 +70,12 @@ private function createIndexes(array $indexesNames, array $customIndexes, Extend
             }
         }
         if (!$createFlag) {
-            $this->output->writeln("<info>No index was created</info>");
+            $this->output->writeln('<info>No index was created</info>');
         }
     }
 
     /**
-     * @param array<string> $indexesNames
+     * @param array<string>              $indexesNames
      * @param array<string, CustomIndex> $customIndexes
      */
     private function dropIndexes(array $indexesNames, array $customIndexes, ExtendedPlatform $platform): void
@@ -88,7 +89,7 @@ private function dropIndexes(array $indexesNames, array $customIndexes, Extended
         }
 
         if (!$dropFlag) {
-            $this->output->writeln("<info>No index was dropped.</info>");
+            $this->output->writeln('<info>No index was dropped.</info>');
         }
     }
 
@@ -101,7 +102,7 @@ private function dropIndex(ExtendedPlatform $platform, string $indexName): void
         }
 
         $this->queryExecutor->dropIndex($platform, $indexName);
-        $this->output->writeln("<info>Index ". $indexName ." was dropped.</info>");
+        $this->output->writeln('<info>Index ' . $indexName . ' was dropped.</info>');
     }
 
     private function createIndex(ExtendedPlatform $platform, CustomIndex $index): void
@@ -110,26 +111,28 @@ private function createIndex(ExtendedPlatform $platform, CustomIndex $index): vo
         if (!count($errors)) {
             if ($this->input->getOption(self::DUMP_SQL_OPTION)) {
                 $this->output->writeln($platform->createIndexSQL($index) . ';');
+
                 return;
             }
 
             $this->queryExecutor->createIndex($platform, $index);
-            $this->output->writeln("<info>Index ". $index->getName() ." was created.</info>");
+            $this->output->writeln('<info>Index ' . $index->getName() . ' was created.</info>');
 
             return;
         }
 
-        $this->output->writeln("<error>Index ". $index->getName() ." was not created.</error>");
+        $this->output->writeln('<error>Index ' . $index->getName() . ' was not created.</error>');
 
         foreach ($errors as $error) {
-            $this->output->writeln("<error>". $error->getMessage() ."</error>");
+            $this->output->writeln('<error>' . $error->getMessage() . '</error>');
         }
     }
 
     private function quoteSchema(string $name): string
     {
         $parts = explode('.', $name);
-        $parts[0] = '"'.$parts[0].'"';
+        $parts[0] = '"' . $parts[0] . '"';
+
         return implode('.', $parts);
     }
 
@@ -137,7 +140,7 @@ private function createExtendedPlatform(AbstractPlatform $platform): ExtendedPla
     {
         return match (true) {
             $platform instanceof PostgreSQLPlatform => new ExtendedPlatform(),
-            default => throw new \LogicException(sprintf("Platform %s does not support", $platform::class)),
+            default => throw new \LogicException(sprintf('Platform %s does not support', $platform::class)),
         };
     }
 }
diff --git a/DBAL/ExtendedPlatform.php b/DBAL/ExtendedPlatform.php
index 84d5afd..cd3d45e 100644
--- a/DBAL/ExtendedPlatform.php
+++ b/DBAL/ExtendedPlatform.php
@@ -9,19 +9,19 @@ final class ExtendedPlatform extends PostgreSQLPlatform
 {
     public function createIndexSQL(CustomIndex $index): string
     {
-        $sql = 'CREATE ';
+        $sql = 'CREATE';
         if ($index->getUnique()) {
-            $sql .= 'UNIQUE ';
+            $sql .= ' UNIQUE';
         }
 
-        $sql .= 'INDEX ' .  $index->getName() . ' ';
-        $sql .= 'ON ' . $index->getTableName() . ' ';
+        $sql .= ' INDEX ' . $index->getName();
+        $sql .= ' ON ' . $index->getTableName();
 
         if ($index->getUsing()) {
-            $sql .= 'USING ' . $index->getUsing() . ' ';
+            $sql .= ' USING ' . $index->getUsing();
         }
 
-        $sql .= '(' . implode(', ', $index->getColumns()) . ')';
+        $sql .= ' (' . implode(', ', $index->getColumns()) . ')';
 
         if ($index->getWhere()) {
             $sql .= ' WHERE ' . $index->getWhere();
@@ -44,7 +44,7 @@ public function indexesNamesSelectSQL(bool $searchInAllSchemas): string
     {
         $sql = "SELECT schemaname || '.' || indexname as relname FROM pg_indexes WHERE indexname LIKE :indexName";
         if (!$searchInAllSchemas) {
-            $sql .= " AND schemaname = current_schema()";
+            $sql .= ' AND schemaname = current_schema()';
         }
 
         return $sql;
diff --git a/DTO/CustomIndex.php b/DTO/CustomIndex.php
index 3ab3b20..891e5f6 100644
--- a/DTO/CustomIndex.php
+++ b/DTO/CustomIndex.php
@@ -12,14 +12,17 @@ final class CustomIndex
 
     #[Assert\Length(min: 1, max: 63, minMessage: 'Name must be set', maxMessage: 'Name is too long')]
     private ?string $name;
+
+    /** @var string[] */
     #[Assert\Count(min: 1, minMessage: 'You must specify at least one column')]
     #[Assert\All([
         new Assert\Type([
-            'type' =>'string',
+            'type' => 'string',
             'message' => 'Column should be type of string',
         ]),
     ])]
     private array $columns = [];
+
     private bool $unique;
     #[AllowedIndexType]
     private ?string $using;
@@ -29,6 +32,9 @@ final class CustomIndex
     private string $schema;
     private string $currentSchema;
 
+    /**
+     * @param string[]|string $columns
+     */
     public function __construct(
         string $tableName,
         string $schema,
@@ -75,6 +81,9 @@ public function getName(): ?string
         return $this->name;
     }
 
+    /**
+     * @return string[]
+     */
     public function getColumns(): array
     {
         return $this->columns;
@@ -104,12 +113,14 @@ private function generateName(): void
         }
 
         $strToMd5 .= $this->getUsing() . ($this->getWhere() ? '_' . $this->getWhere() : '');
-        $name = self::PREFIX . ( $this->getUnique() ? self::UNIQUE . '_' : '' ) . md5($strToMd5);
+        $name = self::PREFIX . ($this->getUnique() ? self::UNIQUE . '_' : '') . md5($strToMd5);
         $this->setName($name);
-
     }
 
-    private function setColumns($columns): void
+    /**
+     * @param string[]|string $columns
+     */
+    private function setColumns(array|string $columns): void
     {
         if (is_string($columns)) {
             $columns = [$columns];
@@ -123,7 +134,7 @@ private function setColumns($columns): void
         }
     }
 
-    private function setName($name): void
+    private function setName(string $name): void
     {
         if (!str_starts_with($name, self::PREFIX)) {
             $name = self::PREFIX . $name;
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 2ef4883..4628ee8 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -9,9 +9,6 @@ class Configuration implements ConfigurationInterface
 {
     private const AVAILABLE_INDEX_TYPES = ['btree', 'hash', 'gin', 'gist'];
 
-    /**
-     * {@inheritDoc}
-     */
     public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder('intaro_custom_index');
@@ -27,13 +24,14 @@ public function getConfigTreeBuilder(): TreeBuilder
                     ->prototype('scalar')
                         ->validate()
                             ->ifNotInArray(self::AVAILABLE_INDEX_TYPES)
-                            ->thenInvalid("Unknown index type. Allowed types: ".implode(', ', self::AVAILABLE_INDEX_TYPES).".")
+                            ->thenInvalid('Unknown index type. Allowed types: ' . implode(', ', self::AVAILABLE_INDEX_TYPES) . '.')
                         ->end()
                     ->end()
                     ->cannotBeEmpty()
                     ->defaultValue(self::AVAILABLE_INDEX_TYPES)
                 ->end()
-            ->end();
+            ->end()
+        ;
 
         return $treeBuilder;
     }
diff --git a/DependencyInjection/IntaroCustomIndexExtension.php b/DependencyInjection/IntaroCustomIndexExtension.php
index 6966e1d..5d91e3f 100644
--- a/DependencyInjection/IntaroCustomIndexExtension.php
+++ b/DependencyInjection/IntaroCustomIndexExtension.php
@@ -2,19 +2,16 @@
 
 namespace Intaro\CustomIndexBundle\DependencyInjection;
 
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 
 class IntaroCustomIndexExtension extends Extension
 {
-    /**
-     * {@inheritDoc}
-     */
     public function load(array $configs, ContainerBuilder $container): void
     {
-        $loader = new PhpFileLoader($container, new FileLocator(dirname(__DIR__).'/config'));
+        $loader = new PhpFileLoader($container, new FileLocator(dirname(__DIR__) . '/config'));
         $loader->load('di.php');
 
         $configuration = new Configuration();
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..fe601e8
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,6 @@
+ARG PHP_IMAGE_TAG
+FROM php:${PHP_IMAGE_TAG}-cli-alpine
+
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+WORKDIR /opt/test
diff --git a/IntaroCustomIndexBundle.php b/IntaroCustomIndexBundle.php
index 30b4bd2..745e421 100644
--- a/IntaroCustomIndexBundle.php
+++ b/IntaroCustomIndexBundle.php
@@ -6,4 +6,4 @@
 
 class IntaroCustomIndexBundle extends Bundle
 {
-}
\ No newline at end of file
+}
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..dd41bab
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,13 @@
+PHP=docker-compose run --rm --no-deps php
+
+vendor: composer.json
+	@$(PHP) composer install -o -n --no-ansi
+	@touch vendor || true
+
+php-cs: vendor
+	@$(PHP) vendor/bin/php-cs-fixer fix --using-cache=no -vv
+
+phpstan: vendor
+	@$(PHP) vendor/bin/phpstan analyse
+
+check: php-cs phpstan
diff --git a/Metadata/Reader.php b/Metadata/Reader.php
index b2f7609..3fd2212 100644
--- a/Metadata/Reader.php
+++ b/Metadata/Reader.php
@@ -7,6 +7,9 @@
 use Doctrine\ORM\Mapping\ClassMetadataInfo;
 use Intaro\CustomIndexBundle\DTO\CustomIndex;
 
+/**
+ * @template T of object
+ */
 final class Reader implements ReaderInterface
 {
     public function __construct(private readonly EntityManagerInterface $em)
@@ -34,13 +37,17 @@ public function getIndexes(string $currentSchema, bool $searchInAllSchemas): arr
         return $indexNamesToCustomIndexes;
     }
 
+    /**
+     * @param array<string, CustomIndex> $indexNamesToCustomIndexes
+     * @param ClassMetadata<T>           $metadata
+     */
     private function collect(
         array &$indexNamesToCustomIndexes,
         ClassMetadata $metadata,
         string $tableName,
         string $currentSchema,
         bool $searchInAllSchemas,
-        bool $tablePostfix = false
+        bool $tablePostfix = false,
     ): void {
         $reflectionAttributes = $this->getCustomIndexesAttributes($metadata);
         if (empty($reflectionAttributes)) {
@@ -72,29 +79,40 @@ private function collect(
         }
     }
 
+    /**
+     * @param ClassMetadata<T> $metadata
+     * @param ClassMetadata<T> $parentMetadata
+     */
     private function getTableNameFromMetadata(ClassMetadata $metadata, ClassMetadata $parentMetadata): string
     {
-        if ($metadata->inheritanceType === ClassMetadataInfo::INHERITANCE_TYPE_JOINED) {
+        if (ClassMetadataInfo::INHERITANCE_TYPE_JOINED === $metadata->inheritanceType) {
             return $parentMetadata->getTableName();
         }
 
         return $metadata->getTableName();
     }
 
-    /** @return array<\ReflectionAttribute> */
+    /**
+     * @param ClassMetadata<T> $meta
+     *
+     * @return array<\ReflectionAttribute<Attribute\CustomIndex>>
+     */
     private function getCustomIndexesAttributes(ClassMetadata $meta): array
     {
-        return $meta->getReflectionClass()->getAttributes(\Intaro\CustomIndexBundle\Metadata\Attribute\CustomIndex::class);
+        return $meta->getReflectionClass()->getAttributes(Attribute\CustomIndex::class);
     }
 
+    /**
+     * @param ClassMetadata<T> $meta
+     */
     private function isAbstract(ClassMetadata $meta): bool
     {
         return $meta->getReflectionClass()->isAbstract();
     }
 
-
     /**
-     * @param array $metadata
+     * @param array<ClassMetadata<T>> $metadata
+     *
      * @return array<string, mixed>
      */
     private function getAbstractClassesInfo(array $metadata): array
@@ -110,7 +128,9 @@ private function getAbstractClassesInfo(array $metadata): array
     }
 
     /**
+     * @param ClassMetadata<T>     $meta
      * @param array<string, mixed> $abstractClasses
+     *
      * @return array<string, mixed>
      */
     private function searchParentsWithIndex(ClassMetadata $meta, array $abstractClasses): array
diff --git a/Validator/Constraints/AllowedIndexType.php b/Validator/Constraints/AllowedIndexType.php
index ca265ca..73f2f3a 100644
--- a/Validator/Constraints/AllowedIndexType.php
+++ b/Validator/Constraints/AllowedIndexType.php
@@ -2,10 +2,9 @@
 
 namespace Intaro\CustomIndexBundle\Validator\Constraints;
 
-use Attribute;
 use Symfony\Component\Validator\Constraint;
 
-#[Attribute(Attribute::TARGET_PROPERTY | Attribute::TARGET_METHOD)]
+#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::TARGET_METHOD)]
 class AllowedIndexType extends Constraint
 {
     public string $message = 'Index type {{ type }} is not allowed. List of allowed types: {{ allowed_types }}.';
diff --git a/Validator/Constraints/AllowedIndexTypeValidator.php b/Validator/Constraints/AllowedIndexTypeValidator.php
index 45cfea4..c4b8a88 100644
--- a/Validator/Constraints/AllowedIndexTypeValidator.php
+++ b/Validator/Constraints/AllowedIndexTypeValidator.php
@@ -15,9 +15,6 @@ public function __construct(private readonly array $allowedIndexTypes)
     {
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function validate(mixed $value, Constraint $constraint): void
     {
         if (!$constraint instanceof AllowedIndexType) {
diff --git a/composer.json b/composer.json
index cc492c6..cb79799 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,11 @@
         "symfony/http-kernel": "^5.0 || ^6.0",
         "symfony/validator": "^5.0 || ^6.0"
     },
+    "require-dev": {
+        "friendsofphp/php-cs-fixer": "^3.59",
+        "phpstan/phpstan": "^1.11",
+        "retailcrm/php-code-style": "^1.0"
+    },
     "autoload": {
         "psr-4": {
             "Intaro\\CustomIndexBundle\\": ""
diff --git a/config/di.php b/config/di.php
index 6ea0deb..0daa9fb 100644
--- a/config/di.php
+++ b/config/di.php
@@ -5,6 +5,7 @@
 use Intaro\CustomIndexBundle\Metadata\Reader;
 use Intaro\CustomIndexBundle\Validator\Constraints\AllowedIndexTypeValidator;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
 use function Symfony\Component\DependencyInjection\Loader\Configurator\service;
 
 return static function (ContainerConfigurator $container): void {
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..1e1f9f0
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,8 @@
+services:
+    php:
+        build:
+            context: .
+            args:
+                PHP_IMAGE_TAG: ${PHP_IMAGE_TAG:-8.1}
+        volumes:
+            - "./:/opt/test"
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 0000000..bc4477e
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,10 @@
+parameters:
+    level: 8
+    paths:
+        - Command/
+        - config/
+        - DBAL/
+        - DTO/
+        - Metadata/
+        - Validator/
+        - IntaroCustomIndexBundle.php