nixpkgs/pkgs/misc/bleeding-edge-fetch-info/hjquery.nix

 args: with args; fetchurl { 
  url = http://mawercer.de/~nix/repos/hjquery.tar.gz;
  sha256 = "32691467d83acd73f733c695266fbeeb4978ee43f4380d3b3554350bfb7cbb0e";}