

Piefed seems to have this, and the ability to subscribe to posts as @TheLeadenSea@sh.itjust.works asks about below.
Migrating is fairly straightforward, it can import your lemmy settings to get you up and running quickly, and the systems interoperate seamlessly, which is fantastic to see.
That has unironicaly made me nostalgic for the days when the web was a place of experimentation, joy and just a bit of crazy.