[Standards] Blasta, Libervia, and Movim

Good day. I would want your advise concerning project Blasta, an annotation system based on XMPP. The project Blasta https://blasta.woodpeckersnest.eu/ is utilizing the specification Atom Over XMPP, and has insentivise me to think of a new XEP that be similar to XEP-0277 (Libervia) and XEP-0472 (Movim), which is the same without the content field. Yet the discussion to standartize bookmark structure at the buku project https://github.com/jarun/buku/discussions/795 and the structure which is used by the linkding bookmark project https://demo.linkding.link/bookmarks which does include a content field with the markdown format, which is what Movim does, has led me to think of supporting the field "content" of Atom Syndication Format. Further, the publishing project Postmill https://postmill.xyz/ works very similarly to bookmarks and forum systems, so comments, which are part of XEP-0277 (Libervia) and XEP-0472 (Movim) are also valid. Hence, I think that Blasra needs to be compatible with XEP-0277 (Libervia) and XEP-0472 (Movim) albeit its main purpose is to manage bookmarks. Please write your thoughts about this matter. Kind regards, Schimon