It's a bit much to require an open source project to deal with the infrastructure to provide that, don't you think?
All reasonable solutions would require the user to have done their part in setting up a nextcloud instance or something akin to that. And then, as the repo discussed, you would still see "oh, the majority don't know that".
Saving things to the cloud as an option, or an officially blessed way to auto-export data locally for your own backup setup, is important though.