So, I’ve got a homelab thing going, with NextCloud and Immich and other things… using Docker. But the one thing I can’t seem to wrap my head around is how to get my calendar needs met behind the scenes. I’m hoping there’s some sort of calendar syncing server I can use.
The problem: I use NextCloud and another android app to use my calendar. Easy. Historically, my household has used a single Google Calendar shared amongst members.
The real problem: They won’t ditch Google. But I need a solution so that I can:
- Sync their calendar events to my NextCloud calendar.
- Sync my calendar events to their Google Calendar. I think that the issue here is, the share links that the calendars give, can only be used to list a new separate calendar on each of the respective platforms - not sync the events between the existing calendars…
I’m hoping that there’s maybe a syncing solution out there that can play middle man and sync the two calendars directly, rather than having separate calendars for the two environments?


Definitely easy, but not really a relevant response given the community we’re in. Plus there’s a lot of use in having your calendar synced to multiple places, not just your phone.
I never found an easy solution to set up for caldav and carddav yet personally. Most are either very complex to set up or they are no longer maintained which is bad for security vulnerabilities. So, I’m still stuck with Google because I need my reminders everywhere I go…ADHD.
Radicale was easy enough for me. Davx5 on android to connect to it, and that’s it.
Should specify, I need it exposed to the internet as well so I can sync it to those multiple devices when I’m at my partner’s place or traveling and so my partner can use it from her place.
And I’d prefer something that allows some type of SSO or external authentication mechanism so it can handle multiple logins with different calendars and I can put some layers of security in front of it. Radicale requires addon applications to do that and most aren’t maintained.
Supposedly Radicale can do it with a WSGI server, but I never found one I got working.
Only one that came close was Baikal, but it had some issues and development has been really slow on it. It’s been quite a few years though, maybe I will try that one again.