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