Hi guys! So, I have Proton Mail, and this also gives me the Calendar. I love that I have a encrypted private calendar, but it bothers me that it doesn’t play well with any other app, as it’s not officially a “calendar” to Android. This bothers me, because I use GrapheneOS, with mostly no Google services, and I’d like my Gadgetbridge-connected smartwatch to be able to display calendar events, since they’re not being shared with anyone else. But I can’t, because Proton Calendar isn’t really an Android Calendar. There’s a way in Proton to permanently share a link to your private calendar. In effect, it’s an up-to-date .ics file, that I believe needs to be checked/downloaded every time there’s an update. Is there a way to update this in Proton? Alternatively, I wouldn’t mind creating some caldav system that imported this, but not sure if there’s already any guide for it?
Thanks so much!
There are FOSS Android apps that work with .ics URLs, like ICSDroid and DavDroid. Some of them work read-only but I guess you’re ok with that.
Radicale and Baikal servers are fairly easy to set up in Docker. Let me know if you run into trouble.
I use Radicale and I expose it over the internet at my own domain. It has full support for events, tasks, contacts (and notes, if you can find an app to support them, AFAIK the only working combination is DAVx5 + jtxBoard). The data is saved in plain text files so it’s very easy to backup and non-proprietary. The server itself is lightweight, it’s literally only one process (Python) and uses about 100 MB of RAM. It has a basic web interface you can use to check if login credentials work and to create/import calendars and contacts. You can turn off this interface when not needed.
Duuuude. I just wish I saw your comment BEFORE spinning and fighting with a nextcloud container. Well…At least I didn’t go all the way in just yet. Just found out ICSx5 does exactly this (it popped when searching for icsdroid on f-droid). My calendar is populated with the Proton Calendar. For my use, I can create events with proton calendar, and Android gets it to the local calendar via ICSx5. Thanks man!
I hope you weren’t installing NextCloud just for CalDav because that would indeed be overkill. 😆 Glad you found something that works.
Yeah…Overkill indeed. I was considering to stop using proton calendar altogether and just migrating to NextCloud…but seems this might work much easier.