anchor.diff:      node2nix = super.node2nix.override {
         buildInputs = [ pkgs.makeWrapper ];
         postInstall = ''
  -        wrapProgram "$out/bin/node2nix" --prefix PATH : ${stdenv.lib.makeBinPath [ pkgs.nix ]}
  +        wrapProgram "$out/bin/node2nix" --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.nix ]}
         '';
       };
   
  
positive.code: 
        nativeBuildInputs = [ pkgs.makeWrapper ];
        postInstall =  ''
          wrapProgram "$out/bin/pulp" --suffix PATH : ${stdenv.lib.makeBinPath [
            pkgs.purescript
          ]}
        '';
  
negative.code:       buildInputs = [ pkgs.makeWrapper ];
        postInstall = ''
          for prog in bower2nix fetch-bower; do
            wrapProgram "$out/bin/$prog" --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.git pkgs.nix ]}
          done
        '';
      };
  