[tikhonj]

I used to be annoyed by how Flakes are coupled to Git, but I've realized that dealing with that is way less pain than dealing with builds that accidentally depend on non-version-controlled files. Missing an unstaged file is annoying, but it gives you an explicit error message and it's easy to fix; accidentally depending on a wrong file can skate by silently (perhaps leading to extra rebuilds but nothing more) until you try to reproduce the build somewhere else, and then it's at least a small headache to debug and fix.