{ pkgs ? import <nixpkgs> {}, python ? pkgs.python39, ... }:

let
  python-packages = ps: with ps; [
    pip
    setuptools
    wheel
  ];
in
pkgs.mkShell {
  nativeBuildInputs = with pkgs; [
    (python.withPackages python-packages)
    poetry
    git
    zlib
    libgccjit
  ];

  shellHook = ''
    export LD_LIBRARY_PATH="${pkgs.zlib}/lib:${pkgs.libgccjit}/lib"
    poetry lock --check > /dev/null || poetry lock
    poetry env use "$(command -v ${python}/bin/python)"
    [ ! -d "./.venv" ] && poetry install --sync
    source .venv/bin/activate
  '';
}