return static function (FrameworkConfig $config): void {
    $config
        ->router()
        ->strictRequirements(null);
};

        if (null !== $this->strictRequirements) {
            $output['strict_requirements'] = $this->strictRequirements;
        }

framework:
    router:
        strict_requirements: null

    private function configureContainer(
        ContainerConfigurator $container,
        LoaderInterface $loader,
        ContainerBuilder $builder
    ): void {
        $configDir = $this->getConfigDir();

        $container->import($configDir.'/{packages}/*.yaml');
        $container->import($configDir.'/{packages}/'.$this->environment.'/*.yaml');

        $container->import($configDir.'/{packages}/*.php');
        $container->import($configDir.'/{packages}/'.$this->environment.'/*.php');

        if (is_file($configDir.'/services.yaml')) {
            $container->import($configDir.'/services.yaml');
            $container->import($configDir.'/{services}_'.$this->environment.'.yaml');
        } else {
            $container->import($configDir.'/{services}.php');
        }
    }