[layer8]

It doesn’t make sense for the modifier keys to be on the rotary dial, but the rest you code encode by a pair of dials (for 10x10 keys). Labeling would be a challenge.

I wonder which of Emacs and Vim would have the advantage here.

[benj111]

A modifier dial would be cool. You could have capslock for X number of seconds.

Vim could have a mode dial. Which mode should be the default is possibly the thing that flame wars are made of though.