Thoughts on federating lemmy and bookwyrm - Lemmy

So I’ve just now looked into bookwyrm despite knowing of it for a while. From what I can tell, it doesn’t federate with lemmy … please correct me if I’m wrong! And this seems to be largely because bookwyrm is largely user based, or at least that’s how mastodon sees it. But it seems that lemmy and bookwyrm would actually be a good fit? Lemmy is communities with posts with comments. Bookwyrm seems to be books with reviews with comments. This feels like a one to one mapping could work well, no? From what I gather, there are various bookwyrm instances with different focuses. So from lemmy you could search specifically to an instance for a book/community using key words, which would also work well. Then you could delve into the various reviews and comments etc. More importantly, this would cross pollinate between the two platforms! And of course, any good review could be easily cross posted to any relevant community here, where all comments from here would also be federated with bookwyrm. Thoughts?