Unrelated but you most posted a comment many years back (below). Wondering if you have any tips on research / articles in this space? > Yes, very nice. But it

Unrelated but you most posted a comment many years back (below). Wondering if you have any tips on research / articles in this space? > Yes, very nice. But it needs an update on structured documents (tree-like, as in HTML). And, ideally, it should be accompanied by work that addresses collaborative editing in such structured documents.