Interesting.. do you think it's a good use case for a drag an drop editor compared to other DND out there?
I really disliked the vuedraggable was handling nesting, and it's just a wrapper around a sortable. At the end of the day, my problem was simple enough that I didn't want a 500kb dependency. If you're wanting to do something like the OP but with nesting, I'd definitely start by looking at Sortable, though (maybe wrapping it the way you want).