diff --git a/kiri-engine/Application.php b/kiri-engine/Application.php
index 3efd0704..a1598fed 100644
--- a/kiri-engine/Application.php
+++ b/kiri-engine/Application.php
@@ -21,11 +21,11 @@ use Psr\Container\ContainerExceptionInterface;
 use Psr\Container\NotFoundExceptionInterface;
 use ReflectionException;
 use Symfony\Component\Console\{Application as ConsoleApplication,
-	Input\ArgvInput,
-	Output\ConsoleOutput,
-	Output\OutputInterface
+    Input\ArgvInput,
+    Output\ConsoleOutput,
+    Output\OutputInterface
 };
-
+use Kiri\Server\Events\OnWorkerStart;
 
 /**
  * Class Init
@@ -35,88 +35,88 @@ use Symfony\Component\Console\{Application as ConsoleApplication,
 class Application extends BaseApplication
 {
 
-	/**
-	 * @var string
-	 */
-	public string $id = 'uniqueId';
+    /**
+     * @var string
+     */
+    public string $id = 'uniqueId';
 
 
-	public string $state = '';
+    public string $state = '';
 
 
-	/**
-	 * @return void
-	 * @throws ReflectionException
-	 */
-	public function init(): void
-	{
-		$error = Kiri::getDi()->get(ErrorHandler::class);
-		$error->registerShutdownHandler(\config('error.shutdown', []));
-		$error->registerExceptionHandler(\config('error.exception', []));
-		$error->registerErrorHandler(\config('error.error', []));
-		$this->id = \config('id', uniqid('id.'));
-	}
+    /**
+     * @return void
+     * @throws ReflectionException
+     */
+    public function init(): void
+    {
+        $error = Kiri::getDi()->get(ErrorHandler::class);
+        $error->registerShutdownHandler(\config('error.shutdown', []));
+        $error->registerExceptionHandler(\config('error.exception', []));
+        $error->registerErrorHandler(\config('error.error', []));
+        $this->id = \config('id', uniqid('id.'));
+    }
 
-	/**
-	 * @param string $service
-	 * @return $this
-	 * @throws
-	 */
-	public function import(string $service): static
-	{
-		if (!class_exists($service)) {
-			return $this;
-		}
-		$class = Kiri::getDi()->get($service);
-		if (method_exists($class, 'onImport')) {
-			$class->onImport(Kiri::getDi()->get(LocalService::class));
-		}
-		return $this;
-	}
+    /**
+     * @param string $service
+     * @return $this
+     * @throws
+     */
+    public function import(string $service): static
+    {
+        if (!class_exists($service)) {
+            return $this;
+        }
+        $class = Kiri::getDi()->get($service);
+        if (method_exists($class, 'onImport')) {
+            $class->onImport(Kiri::getDi()->get(LocalService::class));
+        }
+        return $this;
+    }
 
 
-	/**
-	 * @param Kernel $kernel
-	 * @return $this
-	 * @throws ReflectionException
-	 */
-	public function commands(Kernel $kernel): static
-	{
-		foreach ($kernel->getCommands() as $command) {
-			$this->command($command);
-		}
-		return $this;
-	}
+    /**
+     * @param Kernel $kernel
+     * @return $this
+     * @throws ReflectionException
+     */
+    public function commands(Kernel $kernel): static
+    {
+        foreach ($kernel->getCommands() as $command) {
+            $this->command($command);
+        }
+        return $this;
+    }
 
 
-	/**
-	 * @param string $command
-	 * @return void
-	 * @throws ReflectionException
-	 */
-	public function command(string $command): void
-	{
-		$container = Kiri::getDi();
-		$console = $container->get(ConsoleApplication::class);
-		$console->add($container->get($command));
-	}
+    /**
+     * @param string $command
+     * @return void
+     * @throws ReflectionException
+     */
+    public function command(string $command): void
+    {
+        $container = Kiri::getDi();
+        $console = $container->get(ConsoleApplication::class);
+        $console->add($container->get($command));
+    }
 
 
-	/**
-	 * @param array $argv
-	 * @return void
-	 * @throws ContainerExceptionInterface
-	 * @throws NotFoundExceptionInterface
-	 * @throws ReflectionException
-	 * @throws Exception
-	 */
-	public function execute(array $argv): void
-	{
-		$container = Kiri::getDi();
+    /**
+     * @param array $argv
+     * @return void
+     * @throws ContainerExceptionInterface
+     * @throws NotFoundExceptionInterface
+     * @throws ReflectionException
+     * @throws Exception
+     */
+    public function execute(array $argv): void
+    {
+        $container = Kiri::getDi();
 
-		[$input, $output] = $this->argument($argv);
-		$console = $container->get(ConsoleApplication::class);
-		$command = $console->find($input->getFirstArgument());
+        [$input, $output] = $this->argument($argv);
+        $console = $container->get(ConsoleApplication::class);
+        $command = $console->find($input->getFirstArgument());
 
         if (!($command instanceof Kiri\Server\ServerCommand)) {
             $scanner = $container->get(Scanner::class);
@@ -124,29 +124,34 @@ class Application extends BaseApplication
         } else if (\config('reload.hot', false) === false) {
             $scanner = $container->get(Scanner::class);
             $scanner->read(APP_PATH . 'app/');
+        } else {
+            on(OnWorkerStart::class, function () {
+                $scanner = di(Scanner::class);
+                $scanner->read(APP_PATH . 'app/');
+            }, -1);
         }
 
-		fire(new OnBeforeCommandExecute());
+        fire(new OnBeforeCommandExecute());
 
-		$command->run($input, $output);
-		fire(new OnAfterCommandExecute());
-		$output->writeln('ok' . PHP_EOL);
-	}
+        $command->run($input, $output);
+        fire(new OnAfterCommandExecute());
+        $output->writeln('ok' . PHP_EOL);
+    }
 
 
-	/**
-	 * @param $argv
-	 * @return array
-	 */
-	private function argument($argv): array
-	{
-		$container = Kiri::getDi();
-		$input = new ArgvInput($argv);
-		$container->bind(ArgvInput::class, $input);
+    /**
+     * @param $argv
+     * @return array
+     */
+    private function argument($argv): array
+    {
+        $container = Kiri::getDi();
+        $input = new ArgvInput($argv);
+        $container->bind(ArgvInput::class, $input);
 
-		$output = new ConsoleOutput();
-		$container->bind(OutputInterface::class, $output);
+        $output = new ConsoleOutput();
+        $container->bind(OutputInterface::class, $output);
 
-		return [$input, $output];
-	}
+        return [$input, $output];
+    }
 }