code: public static function createApp(
          string $appPath,
          string $environment,
          bool $debug
      ): BaseKernel {
          $envPath = $appPath.'/.env';
          if (file_exists($envPath)) {
              $dotenv = new Dotenv();
              $dotenv->load($envPath);
          }
  
          $oneBundleAppConfig = new \OneBundleApp\App\OneBundleAppConfig($appPath, $environment);
          \Symfony\Component\Debug\ErrorHandler::register();
          \Symfony\Component\Debug\ExceptionHandler::register();
  
          return new \Mmoreram\BaseBundle\Kernel\BaseKernel(
              $oneBundleAppConfig->getBundles(),
              $oneBundleAppConfig->getConfig(),
              $oneBundleAppConfig->getRoutes(),
              $environment,
              $debug,
              $appPath.'/var'
          );
      }
docs: Create app.
  
  @param string $appPath
  @param string $environment
  @param bool   $debug
  
  @return BaseKernel