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Ask HN: Self Hosted Calendars?
1 point by xyst on May 7, 2024 | hide | past | favorite | 4 comments
I am aware of self hosting email, but what about self hosting calendars?

I would like to be able to send calendar invites between different users of domains and be able to sync different events.

For example, userA@gmail.com sends calendar invite to userB@selfhostedemail.com.

At some point userB accepts or denies the calendar invite. UserA is subsequently notified of UserB decision.

I have seen this work well within users of the same domain (particularly, o365 at work). To some degree, have seen it work between o365 and google workspace users.

Not sure if this is a standard or if these services have some proprietary software to get it to work.



You can use whatever calendar app you want, never sync it to the cloud (ie it's just a native desktop or phone app), and send ical files to share events.

Honestly though it's a huge pain for your recipients. Ical import isn't always straightforward. Gcal can do it but it takes several uncommon steps, for example.

Much easier to just use one of the hosted web services that can generate bespoke invites for different calendar systems.


Presumably any CalDAV server would be sufficient. But I’m sure there are gotchas.


Nextcloud?


This is where I would start. Presumably you’re after more than simply ‘calendars’ and the Nextcloud Stacy integrates with ( sometimes built-in, depending on deployment ) caldav services. It’s also arguably a contender to replacing the M365 stack, with webmail, notes, chat, collaboration even including video




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