Ted Gould@federicomena seems like that was the goal of sending ical files via email. By keeping the same IDs they items could update and everyone had offline calendars that sync'd with mail.
For today, we have all our family calendars (one per person and one 'house') on a @nextclouders server that sync to everything. It works great. I don't think anyone in my family knows how to log into the webui, just all on their devices.
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