I'm curious about syncing my reading progress to places like Open Library. I, like most people, still send it to Goodreads (especially because there's the strong social aspect of it - I've gotten some good recommendations from peers on there) but I know that things like Open Library (and also Bookwyrm, though I'm inclined to use that when I begin making my site more directly compatible with ActivityPub versus this current syndication approach I'm taking now).