anchor.diff:      gtk-engine-murrine
   
       vimHugeX
  +
       git
   
  +    python
       nodejs
  -    python
  -
  -    firefox
  +
  +    chromiumDev
       pidgin
  +
       keepassx2
  +
       dropbox
  +
  +    shotwell
  +
       bitcoin
  +    electrum
     ];
   
     environment.shells = [
  
positive.code:   boot.loader.gummiboot.enable = true;
    boot.loader.gummiboot.timeout = 4;
    boot.loader.efi.canTouchEfiVariables = false;
    boot.extraModprobeConfig = ''
      options hid_apple fnmode=2
    '';
  
negative.code:   };
  
    nixpkgs.config.allowUnfree = true;
    nixpkgs.config.chromium.enablePepperFlash = true;
    nixpkgs.config.chromium.enablePepperPDF = true;
    nixpkgs.config.packageOverrides = pkgs: rec {
      # smb support
      gvfs = pkgs.gvfs.override { lightWeight = false; };
  