{ fetchgit
, stdenv
, callPackage
}:

stdenv.lib.overrideDerivation (callPackage ./trivmix.nix {}) (attrs : {
  src = fetchgit {
    url = git://git.yggdrasil.li/trivmix;
    # nix-shell -p nix-prefetch-scripts --command 'nix-prefetch-git git://git.yggdrasil.li/beuteltier' 2>&1 | grep -E '(git revision|hash) is ' | sed -r 's/git revision is /rev = "/' | sed -r 's/hash is /sha256 = "/' | sed -r 's/$/";/'
    rev = "97535354f19912d7663d2b2569df42f976e660a2";
    sha256 = "ce12c99e5450c985fc0e2a330a3ce471f22ca746ba9a7a3c1c1eee820a4ee42a";
  };
})