If you subscribe to a community in a different instance, it’s automatically mirrored there. If lemmy.world disappeared tomorrow, I’d still be able to view all the communities from lemmy.world on sh.itjust.works, for example.
If you post a new comment, it won’t leave your instance, but all the old posts/comments will still be there.
I have six communities to back up. So how does that work?
As long as there’s a subscriber to the community on another instance, it will automatically have a copy there, that’s just how the federation works. It’s not really a backup, and it only has posts since someone subscribed to the community from that instance.
But if you’re worried about what will happen to old posts from lemmy.world communities: if you can read it now from your instance, it will still be there if lemmy.world disappears.
Got it. I still created backups, but I will subscribe to them with my other instance accounts. That didn’t occur to me.
Commenting because I’m interested as well (as I guess a lot of mods are)
If what you want to do is “copy all my communities from current instance to new instance”, then there is a tool called lasim.
Or did you mean to backup, like as to save all posts and subscribed users ?
Backup and have a place to evacuate to if Lemmy World collapses.
Second I guess, I know because he asked earlier about setting a back up community in case the instance his community is currently on goes bust
