anchor.diff:        ];
       };
   
  -    firefox-env = self.buildEnv  {
  +    /*firefox-env = self.buildEnv  {
         name = "firefoxEnv";
         paths = with self; [
           firefox
         ];
  -    };
  +    };*/
   
       /*myHsEnv = self.haskellPackages.ghcWithPackages (self: with self; [
         pandoc
  
positive.code:     #  withX = false;
      #};
      ffmpeg_head = self.ffmpeg_head.override {
        fdk-aac = self.fdk-aac;
        flite = self.flite;
        libebur128 = self.libebur128;
        mfx-dispatcher = self.mfx-dispatcher;
  
negative.code:         lame
          #libpng
          libvpx_head
          libvpx_next  # AV1/AOMedia
          python3Packages.beets
          python3Packages.pycountry
          cdrtools
  