So does X-keys: https://xkeys.com/xkeys/footpedals/xkfootrear.html https://xkeys.com/xkeys/footpedals/xkfootrear.html (And if you don't mind a crippled non-pr

So does X-keys: https://xkeys.com/xkeys/footpedals/xkfootrear.html https://xkeys.com/xkeys/footpedals/xkfootrear.html (And if you don't mind a crippled non-programmable firmware, you can get it cheaper as a VEC Infinity IN-USB-2, and run a daemon on your laptop to translate joystick-style button events in to keyboard events.)