I use a lot of obscure libraries for scientific computing and engineering. If I install it from pacman or manage to get an AUR build working, my life is pretty good. If I have to use a Python library the faff becomes unbearable, make a venv, delete the venv, change python version, use conda, use uv, try and install it globally, change python path, source .venv/bin/activate. This is less true for other languages with local package management, but none of them are as frictionless as C (or Zig which I use mostly). The other issue is .venvs, node_packages and equivalents take up huge amounts of disk and make it a pain to move folders around, and no I will not be using a git repo for every throwaway test.