anchor.diff:  
         name = mkOption {
           default = "${config.networking.hostName}-fd";
  +        type = types.str;
           description = ''
             The client name that must be used by the Director when connecting.
             Generally, it is a good idea to use a name related to the machine so
  
positive.code: 
        extraMessagesConfig = mkOption {
          default = "";
          description = ''
            Extra configuration to be passed in Messages directive.
          '';
  
negative.code:   {
      options = {
        password = mkOption {
          type = types.str;
          # TODO: required?
          description = ''
            Specifies the password that must be supplied for the default Bacula
  