@tchambers it requires #NomadicIdentity for the account portability, and some form of #POSSE so that you always have a personal copy of your data in case the server you’ve deferred to goes abrubtly defunct without notice.
POSSE doesn’t need to entail a completely separate app/feed that you self-manage though, it could be as simple as your fedi client keeping a local copy of your content, and maybe backing it up on a cloud drive.
For nomadic identity, @arcanicanis is apparently close to a PoC.