Whenever you write something public on Bookwyrm just add the mention of the community in the following format @communityname@instance

Check !cueillette@jlai.lu, I did a few experiment there. Content is in french but the format for sharing a book page, or a review should be the same whatever the language.

Also, you can post your review on !testfediverse@jlai.lu to experiment without spamming anyone.