needs

• migration tool
• self-backup tool
• admin backup validation and public backup verification
• ?

Death

It was all written down when you signed up "if server dies, User dies with that server"

I expect we'll see import/export like other fediverse tools have in short time. BUT.. unlike reddit/twitter/fb - if your server dies, you hop on another and you're still part of the "fediverse"

I'd also like to see "channel/magazine" relays here like we have on mastodon so servers can relay and fill the gaps in core channels nicely.

Unknown - Lemmy is a bit less "mature" than some of the other Fediverse platforms like Mastodon where you can at least export your data. All we have is "delete my account" for example.

If the instance goes away, that's a good question. Certainly federated instances stop receiving anything from it. Will instances that have users who have subscribed to its communities still see cached posts etc? Probably. Unless there's a "Im going away, purge my stuff from you" msg in the AP that I dunno of (haven't finished reading it), a subscribing instance might just think "well, its unavailable at the moment Ill try later."

We perish

It all dies. Choose wisely grasshopper.

And there seems to be no migration option for now

They go too since that's where the account was hosted, but their posts on other Lemmies would probably persist

We need a mirroring function where I can silly to another server to mirror my user account where I can move to automatically without any issues when required.

Same for communities. If a server hosting a community goes down, a mirror on another server can take over after some mod activates it.