The speed on this is phenomenal and I'm really looking forward to you filling out a few more of the missing pieces. Really impressive achievement. I wonder if

The speed on this is phenomenal and I'm really looking forward to you filling out a few more of the missing pieces. Really impressive achievement. I wonder if you've considered kakoune style modal editing rather than vim? If you've not come across it, it might be worth looking at, as I think it's a better paradigm and one that I expect will go nicely with the multiple cursors you're working on.