New to NixOS, just installed on a new PC I built with Ryzen 7700X and nvidia 3070. Using for games and some work stuff, also have windows 11 installed dual booting. Experience so far:

Getting it up and running with btrfs encrypted /home and / subvolumes and Cosmic Alpha 2, working nvidia drivers, was surprisingly easy, just following the wiki
Python machine learning on NixOS I am doing for work has been horrific and several hours in still unable to get working. Trying https://wiki.nixos.org/wiki/Python., apparently I also need a nix shell to get llvm-config for llvmite package, but that wants llvm 10 which is no longer packaged. Tried distrobox --nvidia with ubuntu, and for some reason it is still not able to find my gpu. Have the same project working fine on an Arch box and an Ubuntu 22.04 box, standard pip or uv pip install with a pyprojects.toml.

Anyone else here doing Python development on Nix?