anchor.diff:          # Runtime directory and mode
           RuntimeDirectory = "mastodon-streaming";
           RuntimeDirectoryMode = "0750";
  +        # System Call Filtering
  +        SystemCallFilter = "~" + lib.concatStringsSep " " (systemCallsList ++ [ "@privileged" ]);
         } // cfgService;
       };
   
  
positive.code:   }
    // (if cfg.smtp.authenticate then { SMTP_LOGIN  = cfg.smtp.user; } else {})
    // cfg.extraConfig;
  
    cfgService = {
      # User and group
  
negative.code:         # Runtime directory and mode
          RuntimeDirectory = "mastodon-web";
          RuntimeDirectoryMode = "0750";
          # System Call Filtering
          SystemCallFilter = "~" + lib.concatStringsSep " " (systemCallsList ++ [ "@privileged" ]);
        } // cfgService;
        path = with pkgs; [ file imagemagick ffmpeg ];
      };
  