Calendar apps should let individuals rename shared events for themselves, without renaming the event for all the invitees. If I have coffee with Sally, the same event should be named “Paul coffee” for Sally and “Sally coffee” for me.

Do any calendar clients out there do this? It seems so obvious. Am I just missing it?

@inthehands AFAICT CalDAV is a way to share `.ics` (iCal) files, `.ics` files can have custom properties (starting with `X-*`) so you could define custom properties to rename the event locally, these properties would be stripped out when syncing(?) or synced only to calendars you own.

So technically possible to achieve.