{ pkgs ? import <nixpkgs> { } }:
let
  fold-to-ascii = (py: py.callPackage ./nix-extra-deps/fold-to-ascii.nix { });
  my_python = pkgs.python39.withPackages
    (py: with py; [ py.mutagen (fold-to-ascii py) py.autopep8 py.pyyaml ]);

in pkgs.mkShell { packages = with pkgs; [ my_python ffmpeg fd r128gain ]; }