{
  # nixpkgs ? builtins.getFlake "github:GeoffreyFrogeye/nixpkgs/zelbar",
  nixpkgs ? /nix/store/8g86qw3c2fr56bhhvqznrlic4jig9hb3-source,
  pkgs ? import nixpkgs {
    config = { };
    overlays = [ ];
  },
  ...
}:
# Tried using pyproject.nix but mpd2 dependency wouldn't resolve,
# is called pyton-mpd2 on PyPi but mpd2 in nixpkgs.
pkgs.python3Packages.buildPythonApplication rec {
  pname = "frobar";
  version = "3.0";

  propagatedBuildInputs = with pkgs.python3Packages; [
    i3ipc
    psutil
    pulsectl-asyncio
    pygobject3
    rich
  ];
  # TODO Might just be buildInputs, maybe without the need for prefix?
  nativeBuildInputs = with pkgs; [
    wirelesstools
    playerctl
    zelbar
  ];
  makeWrapperArgs = [
    "--prefix PATH : ${pkgs.lib.makeBinPath nativeBuildInputs}"
    "--prefix GI_TYPELIB_PATH : ${GI_TYPELIB_PATH}"
  ];

  GI_TYPELIB_PATH = pkgs.lib.makeSearchPath "lib/girepository-1.0" [
    pkgs.glib.out
    pkgs.playerctl
  ];

  src = ./.;
}