We like your idea, that's why we all jumped into the thread. Let us think about it a bit more and get back to you. This could actually be kinda cool and customizable.

Create your own Bible study, (or any book study), including media files and scheduling preferences and different book editions, and stuff. One person just has to upload in a modular fashion one time and everyone after that can mix and match or even have random selections or setup according to popular patterns (chronological, liturgical, or book of common prayer, etc.)

That's the sort of personalized, organic, evolving mess that Nostr is well-suited for. And you could offer it to groups or communities, to form a book club.

Hold that thought.