I have a SpiffChorder [1] built by Greg Priest-Dorman. It has 7 keys (three for thumb). I can write at about 40-50 wps and code in emacs reasonably, but it is

I have a SpiffChorder [1] built by Greg Priest-Dorman. It has 7 keys (three for thumb). I can write at about 40-50 wps and code in emacs reasonably, but it is slower, so I only use it when I am eating something or have one hand busy. Greg mentioned having two keyboards in each hand should be faster than a single traditional keyboard, but I never tried that. 1. https://chorder.cs.vassar.edu/doku.php?id=spiffchorder:forside https://chorder.cs.vassar.edu/doku.php?id=spiffchorder:forsi...