anchor.diff:  
         staticDir = mkOption {
           type = types.path;
  -        default = gititShared + "/data/static";
           description = ''
             Specifies the path of the static directory (containing javascript,
             css, and images).  If it does not exist, gitit will create it and
  
positive.code: 
    config = mkIf cfg.enable {
  
      users.extraUsers.gitit = {
        group = config.users.extraGroups.gitit.name;
        description = "Gitit user";
  
negative.code:       };
  
        haskellPackages = mkOption {
          defaultText = "pkgs.haskellPackages";
          example = literalExample "pkgs.haskell.packages.ghc784";
          description = "haskellPackages used to build gitit and plugins.";
  