anchor.diff:      # FIXME: racket
       sbcl
   
  -    ### Messaging ###
  -    # zeromq
  -
       ### Miscellaneous ###
       # FIXME: calibre
       # cowsay
  
positive.code:     ffmpeg
      flac
      fluidsynth
      # graphicsmagick
      # imagemagick
      lame
      timidity
  
  
negative.code:       inherit (super.darwin.apple_sdk.frameworks) Cocoa;
      };
      gap4r8p8 = super.callPackage ./pkgs/applications/science/math/gap/4r8p8.nix {};
      gnucash = super.callPackage ./pkgs/applications/office/gnucash {};
      # idrisPackages = super.callPackage ./pkgs/development/idris-modules {
      #   idris-no-deps =
  