{ 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 = "835226ea18526e3d9b95697b9bdd15cde6e19e50";
    sha256 = "1e63d2c42a7a75f18a4e9ea9a99a8ef46f93e78417bfd22d8e6c25443926f670";
  };
})