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

 args: with args; fetchurl { 
  url = http://mawercer.de/~nix/repos/hjavascript.tar.gz;
  sha256 = "fcf76a344eda3afca9b87f8e8ae1d343953b1bdda5da062f887a47f7d5a3c0da";}