I just got nerd-sniped by an old Tom Scott video which touched on bodging multi-keyboard input.

The funny thing is, Linux is technically easier to do this bodge with, but it's the documentation that holds it back.

Want to bodge it through evdev? Good luck learning to permanently adjust udev permissions.

Want to use XInput2? Qt and GTK don't expose the relevant field, so you have to learn raw X11... which doesn't have the best documentation.