Drush
TopicDrush is a command line interface that enables you to interact with your Drupal site without clicking around the graphical user interface (GUI).
Testing in Drupal
TopicDrupal includes the PHPUnit testing framework. This enables us to write unit and functional tests to attempt to minimize the number of bugs in our application.
Contributing to Drupal
TopicAs an open source project, Drupal depends on community contributions in many forms including documentation, code, translation, speaking, organizing events, mentoring others, and even donating money.
Docker
TopicFor the Drupal developer, Docker is a way to provide a local development environment to run web server software.