anchor.diff:  {stdenv, fetchurl, jre}:
   
  -stdenv.mkDerivation {
  -  name = "alchemy-007";
  +stdenv.mkDerivation rec {
  +  name = "alchemy-${version}";
  +  version = "008";
  +
     enableParallelBuilding = true;
   
     src = fetchurl {
  -    url = http://al.chemy.org/files/Alchemy-007.tar.gz;
  -    sha256 = "1pk00m4iajvv9jzv96in10czpcf7zc3d4nmd9biqagpsg28mr70b";
  +    url = "http://al.chemy.org/files/Alchemy-${version}.tar.gz";
  +    sha256 = "0449bvdccgx1jqnws1bckzs4nv2d230523qs0jx015gi81s1q7li";
     };
   
     installPhase = ''
  
positive.code:     chmod +x $out/bin/alchemy
    '';
  
    meta = {
      description = "Drawing application";
      longDescription = ''
        Alchemy is an open drawing project aimed at exploring how we can sketch,
  
negative.code:       an expanded range of ideas and possibilities in a serendipitous way.
      '';
      homepage = http://al.chemy.org/;
      license = licenses.gpl3Plus;
      maintainers = [ maintainers.marcweber ];
      platforms = platforms.linux;
    };
  }
  