Another random #nix question: how does `nix run` know where to get `home-manager/master` from?
https://github.com/cognivore/icfpc-compute/issues/3#issuecomment-2443262347
@jonn If you do nix run home-manager it takes it from your nix registry, a list of predefines flakes on your system. Otherwise you can do nix run github:nix-community/home-manager/master