Here is the RFC for acct-* packages corresponding to users and groups created by packages I currently maintain. This is also a request to reserve the respective UIDs/GIDs, namely:
Groups: - burp - 501 - rtkit - 133 Users: - burp - 501 - rtkit - 133 - syncthing - 502 rtkit user and group have got their IDs reserved in both Arch and Fedora, I have opted for consistency with the former.