Last commit is on April 22, 2023: https://github.com/Kozea/Radicale/commits/master/

Last release on July 15, 2022: https://github.com/Kozea/Radicale/releases

Among the list of CalDAV/CardDAV servers mentioned in the wiki, Baikal seems to be a good alternative that is also maintained.

Last commit 10 hours ago: https://github.com/sabre-io/Baikal/commits/master/

Last release on November 16, 2023: https://github.com/sabre-io/Baikal/releases

While there is an AUR package of Baikal, I try to avoid installing AUR packages as much as possible. How do I request arch packagers to package Baikal in the official repos?