Much like how there aren't different files for GCC/Clang/MSVC, there shouldn't be different files for different Python impls.
With the current setup these folders are ignored in the whole repo, but they're only automatically generated in the project root so it makes sense to only ignore the ones in the root. I made this change because one of the assets in my project uses a folder called 'Library', and I was wondering why it never uploaded that folder.
This extension is an alternative scheduler to build multi-module Maven projects. It stores and updates timing for every build run in .mvn/timing.properties. http://takari.io/book/30-team-maven.html#takari-smart-builder