{ pkgs ? import <nixpkgs> {} }:

pkgs.mkShell {
  nativeBuildInputs = with pkgs; [
    gitAndTools.pre-commit
    (python3.withPackages(ps: [ ps.virtualenv ]))
  ];
  shellHook = ''
    # black’s pre-commit hook builds a wheel (zip file) for black and fails
    # when the timestamp is lower than 1980 (due to zip limitations)
    export SOURCE_DATE_EPOCH=315532800
    pre-commit install -f >/dev/null
  '';
}