A few questions:

1. I can see there's an example of using it with React and Prosemirror, what's the gap to using it with Tiptap (for those who don't know, it's an abstraction on top of Prosemirror that aims to streamline the task of building editors)?

2. Is there any prior art or room in the design for supporting permissioned blocks of content _within_ a document? i.e things which some users aren't allowed to view (or edit)