Instead of the J key as a joystick, I want to see touch sensitive keycaps turned into a trackpad. On iOS software keyboard, holding spacebar then swiping aroun

Instead of the J key as a joystick, I want to see touch sensitive keycaps turned into a trackpad. On iOS software keyboard, holding spacebar then swiping around moves the cursor. I’ve read that a blackberry android phone (Key One?) has similar on its hardware keyboard, but I’ve not seen one in real life or seen a video of that feature specifically (anyone know of one?). I don’t see much about eyeball tracking these days; if I can look where I want the cursor to be, can’t I push a key to put it there? Surely with the rise of camera tech, computing power, and image analysis tooling that’s easier than it used to be?