Composer
TopicComposer is the preferred dependency management solution for PHP, is used by Drupal core, and is becoming increasingly popular for managing the modules and themes used for a Drupal project.
Drupal Composer Project
TopicThe Drupal Composer Project provides a scaffold for starting a new Drupal project and managing that project's dependencies with Composer. It was created before the drupal/recommended-project Composer project template was developed, which is the current best practice method for creating a new Drupal site with Composer.
Learn Drupal
GuideChapter 14: Final Thoughts
CourseDrupal User Guide
GuideDecoupled Drupal
CourseBack up Your Drupal Site
TopicA reliable backup will allow you to restore your site if something goes wrong.
Drupal's content moderation and workflow tools allow you to configure and support a flexible multistep publication process.
An overview of some of our favorite Drupal documentation resources.
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.
The Drupal Community
TopicDrupal has an amazing community of people who create the software and help each other make the best use of it. This is one of the main benefits of using Drupal — and everyone should take advantage of that.