[peteretep]

Combine the camera for a facial expression based input instead? Grimace to change modes?

[fhunt]

IDK I am totally fine with i, I and A haha and the brain is also faster when processing chords from the fingers only. If you blend feet or even just thumb strokes in you significantly slow down.

edit: just thinking of piano players, maybe I am wrong but this thing feels odd

[ccozan]

maybe eyes blinking? Left eye blink -> i, again,<esc>, right eye -> (maybe) o , again <esc>

double blinking would be also fun to map!