anchor.diff:          group = "hydra";
           useDefaultShell = true;
           home = "${baseDir}/queue-runner"; # really only to keep SSH happy
  +        uid = config.ids.uids.hydra-queue-runner;
         };
   
       users.extraUsers.hydra-www =
         { description = "Hydra web server";
           group = "hydra";
           useDefaultShell = true;
  +        uid = config.ids.uids.hydra-www;
         };
   
       nix.trustedUsers = [ "hydra-queue-runner" ];
  
positive.code: 
    config = mkIf cfg.enable {
  
      users.extraGroups.hydra = { };
  
      users.extraUsers.hydra =
        { description = "Hydra";
  
negative.code:         createHome = true;
          home = baseDir;
          useDefaultShell = true;
          uid = config.ids.uids.hydra;
        };
  
      users.extraUsers.hydra-queue-runner =
  