At the very least, it's super simple to do in Jerboa if you have accounts on each.
semperverus
joined 2 years ago
I mean literally just register your account again. Maybe subscribe to the communities you like on each account if you have the time to, but if not just reserve your username on each and have them saved in your password manager and ready to go in case of a break-glass incident.
They kinda can't be a spez, by design. Just make sure you make backup accounts on all the other instances, and use them occasionally
Just like on Reddit where you have /r/a_thing and /r/athing