Radicale is maintenance-free in my years of experience.
this post was submitted on 21 Mar 2026
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I use Radicale as a Docker container and it runs fine, with no maintenance apart from upgrading the image once in a while.
Same. It's pretty much my best behaved container.
Would have said baikal if you haven’t alteady mentioned it. Can’t confirm that it’s a bitch to maintain, runs in my webjail for more than a year now. (Before I used nextcloud which IS a bitch in all matters..) The only hiccup was self induced, forgot to install it after php upgrade (FreeBSD, pkg is named php83-baikal for example).
Specifically for webdav (Joplin sync) I use dave, though unmaintained no issues so far (internal network only, not web facing).
I use Baïkal for card and cal and Apache for webDAV, they provide all the features I need and were easy enough to set up, never tried alternatives.
Doesn't Etar use DAVx⁵? I would love direct synchronization but I don't see a way to connect directly.
I don't personally use it so I don't know if it depends on davx5, but you can add a CalDAV calendar directly in Etar settings.
I think I was actually thinking of KashCal, which works without DAVx5 by design
Maybe try to explain the struggles you have had, since to my knowledge the posted options are the best and simplest once out there.
Radicale and Baikal are the most popular ones, but I wanted to share a few lesser known ones:
- Etesync
- Stalwart*
*Yes, Stalwart is a full blown Email+Calendar solution, but it requires 1 Core & 100 mb of RAM. And you get both CalDav & the newer & superior JMAP protocol. It's backed by NLNET NGIO and it has a proven track record.
This is good, I use Mailcow Dockerized and it uses 10% of one 3.7GHz core, but 2GB of RAM. Stalwart definitely seems better for low memory hosts. Seems to have one instance of rspamd for each mailbox, they and ofelia are the biggest users of RAM according to top
What troubles were you having with Baikal? I generally let mine just sit with a checked out tag from Git.
What did you have problems with concerning Baïkal?
I have used without alot of maintenance or struggles mailcow-dockerized to do the Cal/Card DAV, idk maybe try that
I think you got a downvote for promoting mailcow, users can be fickle
Looking for a simple card/cal/WebDAV server that runs in docker.
Or maybe just because there is nothing simple in hosting a mail server for having card and caldav.
It is indeed rather complex.
Combine with mail and use SoGo. Foss and works nearly out of the box.
I use Caddy with the WebDAV extension. Works beautifully.
For an unbelievably simple WebDAV server, you may want to look into copyparty.
It depends on your needs, as it is not as full featured as some options out there, but it's one Python file that you can just download and open. Boom. Fileserver.
Nextcloud AIO
Nextcloud
might be a bit heavy for this, but ive been having fun with nextcloud.. its caldav based, i think. ive got it syncin with outlook calendars and the mobile client seems to throw shit in my face as needed
havent really messed with the contact stuff though
I am the middle of struggling to backup my calendars from nextcloud after my GPU failed. Nextcloud in docker containers is terrible for any sort of recovery. They're not even broke, you just can't run them with a GPU setup, remove the GPU, and then expect them to still be able to run.
it kinda sounds like you failed to back them up and are attempting to restore them from a non-backup.
and yeah, pulling an integral, configured component and expecting it to just run fine seems kinda.. psychotic.