I am currently running baikal using podman, quadlets, rootless mode. What kind of issue did you have?

That said, although baikal does get the job done, I am actually considering migrating to nextcloud just because of caldav/carddav, since it seems to be the most complete implementation out there.

It is worth taking a look at the features you need before fully migrating. As far as I can tell baikal may have some issues for some people with invitations, sharing calendars and sending email.

I’ve seen people recommend radicale, which probably works well, but from what I read is the least adherent to caldav/carddav protocols.