This tiny Symfony Edition contains only Framework and Twig bundles (plus Debug and WebProfiler in debug mode).

You may use this edition when you want to bootstrap a tiny symfony project and aim to add what you'll need only when you need it.

composer create-project adriensamson/symfony-tiny-edition my-project

Do not forget to update name and description in composer.json according to your project. You also have to copy app/config/parameters.yml.dist to app/config/parameters.yml and edit it manually.