TBD
https://github.com/php-actions/phpunit/blob/master/phpunit-action.bash
https://github.com/composer/composer/blob/master/src/Composer/Command/InitCommand.php
https://symfony.com/doc/current/console/input.html
https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions
https://docs.github.com/en/actions/creating-actions/creating-a-docker-container-action