anchor.diff:  let
   
     cfg = config.services.gitDaemon;
  -  gitUser = "git";
   
   in
   {
  
positive.code:         description = "Extra configuration options to be passed to Git daemon.";
        };
  
      };
    };
  
  
negative.code: 
    config = mkIf cfg.enable {
  
      users.extraUsers = if cfg.user != "git" then {} else singleton
        { name = "git";
          uid = config.ids.uids.git;
          description = "Git daemon user";
        };
  
      users.extraGroups = if cfg.group != "git" then {} else singleton
        { name = "git";
          gid = config.ids.gids.git;
        };
  
  