I found the Bitcoin paper example to be very compelling - really awesome work! You have a great eye for design.

I signed up and liked the familiar Notion-style interface, however I had some difficulty figuring out how to create the same caliber of animations as your examples, and get them to sync up correctly with the text - would be nice to get a bit more help when opening the animation editor for the first time.

Edit: also not able to delete blocks and re-order, and I am still trying to figure out the controls to switch between editing different animation steps.