{ system ? "x86_64-linux", pkgs ? import { inherit system; }, }: let packages = [ pkgs.python311 pkgs.uv pkgs.zsh ]; LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc # Add any missing library needed # You can use the nix-index package to locate them, e.g. nix-locate -w --top-level --at-root /lib/libudev.so.1 ]; # Keep the virtual environment in-repo for direnv usage. UV_PROJECT_ENVIRONMENT = ".venv"; in pkgs.mkShell { buildInputs = packages; shellHook = '' export SHELL=${pkgs.zsh} export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}" export UV_PROJECT_ENVIRONMENT="${UV_PROJECT_ENVIRONMENT}" export UV_PYTHON_DOWNLOADS=never export PYTHON_KEYRING_BACKEND=keyring.backends.null.Keyring ''; }