I'm not too familiar with the fediverse model. I noticed that registration is closed on the primary instance bookwyrm.social.[1] Is the ideal use case of bookwyrm for each user to host their own instance? Like this one: https://book.dansmonorage.blue/
As a user, I wouldn't want to sign up on someone's hobbyist bookwyrm instance only for them to shut it down later and lose all my data.