{ 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 = "001ef44aa84f17a0b40b9629a996ccc7ddfd1293"; sha256 = "06qf635fbg1b5a6b2wp9nfq2zdn32slf8y3lnc5dsjv1ppxl841v"; }; })