Puzzle 201 ("Empty Abyss III", Choco Banana)

Whoops, I did it again.  This is the final one. I could maybe try to extend it further, but I don't want to for two reasons:

1. The opening logic becomes repetitive after a point;
2. I'm implicitly trying to keep all the number clues single digits, and I just barely managed to make that work in this grid.

In any case, these experiments are fun.  Open middle grids are fun.  Maybe a bit too fun.

Online interface (puzz.link)