Symfony demo with Fluent PHP format for services

services.php

<?php

use AppBundle\Command\ListUsersCommand;
use AppBundle\EventListener\CommentNotificationSubscriber;
use AppBundle\EventListener\RedirectToPreferredLocaleSubscriber;
use AppBundle\Twig\AppExtension;
use AppBundle\Utils\Slugger;
use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
use Twig\Extensions\IntlExtension;

return function (ContainerConfigurator $c) {
    $s = $c
        ->services()
            ->defaults()
                ->private()
                ->autoconfigure()
                ->autowire();

    $s->load('AppBundle\\', '../../src/AppBundle/*')
        ->exclude('../../src/AppBundle/{Controller,Entity,Repository,Tests}');

    $s->load('AppBundle\\Controller\\', '../../src/AppBundle/Controller')
        ->public()
        ->tag('controller.service_arguments');

    $s->set(ListUsersCommand::class)
        ->argument('$emailSender', '%app.notifications.email_sender%');

    $s->set(AppExtension::class)
        ->argument('$locales', '%app_locales%');

    $s->set(CommentNotificationSubscriber::class)
        ->argument('$sender', '%app.notifications.email_sender%');

    $s->set(RedirectToPreferredLocaleSubscriber::class)
        ->argument('$locales', '%app_locales%')
        ->argument('$defaultLocale', '%locale%');

    $s->set(IntlExtension::class);

    $s->alias('slugger', Slugger::class)
        ->public();
};

services.yml

services:
    _defaults:
        autowire: true
        autoconfigure: true
        public: false

    AppBundle\:
        resource: '../../src/AppBundle/*'
        exclude: '../../src/AppBundle/{Controller,Entity,Repository,Tests}'

    AppBundle\Controller\:
        resource: '../../src/AppBundle/Controller'
        public: true
        tags: ['controller.service_arguments']

    AppBundle\Command\ListUsersCommand:
        arguments:
            $emailSender: '%app.notifications.email_sender%'

    AppBundle\Twig\AppExtension:
        $locales: '%app_locales%'

    AppBundle\EventListener\CommentNotificationSubscriber:
        $sender: '%app.notifications.email_sender%'

    AppBundle\EventListener\RedirectToPreferredLocaleSubscriber:
        $locales: '%app_locales%'
        $defaultLocale: '%locale%'

    Twig\Extensions\IntlExtension: ~

    slugger:
        alias: AppBundle\Utils\Slugger
        public: true