{
  pkgs,
  sysLib,
  ...
}: let
  unzip_mozlz4 = pkgs.stdenv.mkDerivation {
    name = "unzip_mozlz4";
    propagatedBuildInputs = [
      (pkgs.python3.withPackages (pythonPackages:
        with pythonPackages; [
          lz4
        ]))
    ];
    dontUnpack = true;
    installPhase = "install -Dm755 ${./unzip_mozlz4.py} $out/bin/unzip_mozlz4";
  };
  extract_cookies = sysLib.writeShellScript {
    name = "extract_cookies";
    src = ./extract_cookies.sh;
    dependencies = with pkgs; [
      bash
      sqlite
      mktemp
      coreutils
    ];
  };
in {
  inherit unzip_mozlz4 extract_cookies;
}