{stdenv, fetchurl}:

stdenv.mkDerivation {
  name = "quake3demo-1.11-6";
  builder = ./builder.sh;

  # This is needed for pak0.pk3.
  demo = fetchurl {
    url = http://nixos.org/tarballs/linuxq3ademo-1.11-6.x86.gz.sh;
    md5 = "484610c1ce34272223a52ec331c99d5d";
  };

  # This is needed for the additional pak?.pk3 files.
  update = fetchurl {
    url = http://nixos.org/tarballs/linuxq3apoint-1.31.x86.run;
    md5 = "2620b9eefb6d0775f766b6570870157a";
  };

  # Don't rebuild if the inputs change, since the output is guaranteed
  # to be this value.
  outputHashMode = "recursive";
  outputHashAlgo = "sha256";
  outputHash = "00453c43a4jnlbm9w9ws1hdi28hkl63xnxbnbqml25h35ckhzs90";
}