well, you should be able to, at the OS level use only keyboard shortcuts. Windows once was great with tab, enter, escape, but browsers make things more complicated than dialog boxes, and MacOS really isn't good at keyboard shortcuts. I would prefer the solution was not Mouseless and the others, but no mouse.

That's OK in menus and the OS in general but if you're working on a web app or big form tabbing through it can be a PITA.