Yes, it's my Jumble fork. It was born for exploring the #groupednotes paradigm, I'm trying to optimize some related UX, and probably I will explore more ideas about content discovery.
The bookmarking is not visible in Jumble because no user is logged in.
Btw, with the two images, I was pointing out how much cleaner and distraction-free the interface can be browsing by author and disabling web previews.
I mean, to reply to these notes.
I ask because it seems that your client does not use the outbox model, so your replies are not delivered to my reading relays (and therefore I missed them).