This kind of work is also fantastic for those who have limited mobility or use of hands. On top of that, it's also a comforting peace of mind for the rest of us that should we ever e.g. lose our hands in a car collision, we might still have a successful path forward in our programming careers and passions.

Reminds me of a talk I once saw where a developer developed arthritis and couldn't program effectively anymore, so he developed an almost "verbal vim" plugin for vim (or was it emacs?) that allowed him to write/edit code quickly using verbal utterances. I forget what that project was, but I wonder how these two compare.