Loving this!
Very interesting, and it has a relation to a subject that I started a brainstorm Fediverse Futures topic about:
And it has a non-technical Lemmy companion post too:
Now I am not very familiar in this domain, so it is hard to gauge the value of these ideas. Maybe you’d like to hop onto these threads and add your ideas? 
PS. In any case, I added your project to the ActivityPub Developer Resources Watchlist …