The Drupal Coding Standards apply to code within Drupal and its contributed modules.
User interface standards for Drupal.
Learn how to provide documentation and help text for your project.
Local server setup for Drupal.
Learn how to use Composer to manage Drupal projects and their dependencies.
Commonly used tools to aid in Drupal development
Guildelines on how to perform usability testing for Drupal, as well as previous testing results.
Packaging a distribution on Drupal.org.
Benchmarking and profiling Drupal.