anchor.diff:          EnvironmentFile = "/var/lib/mastodon/.secrets_env";
           WorkingDirectory = cfg.package;
           # System Call Filtering
  -        SystemCallFilter = [ ("~" + lib.concatStringsSep " " (systemCallsList ++ [ "@resources" ])) "@chown" ];
  +        SystemCallFilter = [ ("~" + lib.concatStringsSep " " (systemCallsList ++ [ "@resources" ])) "@chown" "pipe" "pipe2" ];
         } // cfgService;
         after = [ "mastodon-init-dirs.service" "network.target" ] ++ (if databaseActuallyCreateLocally then [ "postgresql.service" ] else []);
         wantedBy = [ "multi-user.target" ];
  
positive.code:         EnvironmentFile = "/var/lib/mastodon/.secrets_env";
          WorkingDirectory = cfg.package;
          # System Call Filtering
          SystemCallFilter = [ ("~" + lib.concatStringsSep " " systemCallsList) "@chown" ];
        } // cfgService;
        path = with pkgs; [ file imagemagick ffmpeg ];
      };
  
negative.code:   // (if cfg.smtp.authenticate then { SMTP_LOGIN  = cfg.smtp.user; } else {})
    // cfg.extraConfig;
  
    systemCallsList = [ "@cpu-emulation" "@debug" "@keyring" "@ipc" "@mount" "@obsolete" "@privileged" "@setuid" ];
  
    cfgService = {
      # User and group
  