anchor.diff:      #rtorrent = self.rtorrent.override {
         #  colorSupport = true;
         #};
  -    #x264 = self.x264.override {
  -    #  enable10bit = true;
  -    #};
       #desktop = self.haskellPackages.ghcWithPackages (self : with self; [
       #  haskell-ngPackages.xdgBasedir
        # xmonad
  
positive.code: 
    packageOverrides = self: rec {
  
      chromium = self.chromium.override {
        proprietaryCodecs = true;
        #enableWideVine = true;
        #enablePepperFlash = true;
      };
      #emacs = self.emacs.override {
      #  withX = false;
      #};
      ffmpeg_head = self.ffmpeg_head.override {
        nonfreeLicensing = true;
        fdk_aac = self.fdk_aac;
        libebur128 = self.libebur128;
        mfx-dispatcher = self.mfx-dispatcher;
        nvenc = true;
      };
      pulseaudio_full = self.pulseaudio_full.override {
        loopbackLatencyMsec = "20";
  
negative.code:         evince
          file-roller
          gnome-calculator
          #gnome-screenshot
          gnome-terminal
          mumble
          nautilus
  