anchor.diff:    firefox = {
       enableGoogleTalkPlugin = true;
       enableAdobeFlash = true;
  -    enableBluejeans = true;
     };
   
     chromium = {
  
positive.code:         keybase-go
          oh-my-zsh
          unzip
          vlc
          zip
  
          # Java
          jdk
          maven
  
          # Scala
          activator
          ammonite-repl
          sbt
          scala
  
          (import ../nixpkgs/sublime3-dev.nix)
        ];
      };
    };
  
negative.code:   };
  
    packageOverrides = pkgs_: with pkgs_; {
      user-basics = with pkgs; buildEnv {
        name = "user-basics";
  
        paths = [
          firefox
  