td/default.nix

with import <nixpkgs> {};
stdenv.mkDerivation rec {
  name = "env";
  env = buildEnv { name = name; paths = buildInputs; };
  buildInputs = [
    python3
    python36Packages.pip
    python36Packages.pygame
    python36Packages.cairosvg
    python36Packages.virtualenv
  ];
}