>If your tests are fully isolated (and they should be for many reasons), parallelization ought to be almost drop in. You can set it up in github actions pretty

>If your tests are fully isolated (and they should be for many reasons), parallelization ought to be almost drop in. You can set it up in github actions pretty easily. Good point. My experience is that super-long test runs also have dependencies that interfere with parallelization, but that might just be the projects I've worked on. > If a feature that predicted which tests to run were drop in Id say it was a no brainer too, but there is no tooling for it yet so it would have to be built from scratch. There is! I wrote one for Python (https://getspdr.dev https://getspdr.dev)! If you just care about local runs, there's also the pytest-testmon plugin. Fos Js, both Vitest and Jest have settings to enable it. It's definitely out there!