Dirty DBs for tests
https://calpaterson.com/against-database-teardown.html
Database mocks or not
https://www.shayon.dev/post/2024/365/database-mocks-are-just-not-worth-it/
Verified fakes
https://pythonspeed.com/articles/verified-fakes/
Parallel end-to-end tests
https://www.qawolf.com//blog/principles-for-writing-parallizable-tests