joomla-branches-tester

Test Joomla (3.9–7.0-dev) and joomla-cypress in Docker. Switch PHP (7.4–8.5), MySQL/MariaDB/PostgreSQL and Redis. Run interactive or automated System Tests, apply PRs, inspect DB, mail, network and Xdebug. Maintained by muhme on GitHub, where it has earned 5 stars from the community.

It's actively developed around cypress, docker, hacktoberfest, and is a solid reference for anyone building with these tools.