Each key is magnetically suspended with rare earth magnets allowing them to be 97% transparent and ultra low friction. Each switch has 4mm of travel and will be available in linear and tactile variants. They also feature a software adjustable actuation point in 0.1mm increments and rapid trigger functionality through analog hall effect sensing.
The keys contain magnets along their perimeter which are attracted by magnets in the frame which surrounds them. This magnetic attraction suspends them in place and provides the return force which makes the key bounce back after depressing - similar to a spring.
I got the same implants after talking to him about it on IG. It barely worked. An array of magnets on the skull would probably work. I had to get the magnets in my ears removed when the casings failed.
My guess is that if this keyboard is released and if you use your fingertips rather than fingerpads to type, you might not have a problem unless you are ticklish.
If they are really with the times, then they will use printed polymagnets:
Programmed magnets, or polymagnets are magnetic structures that incorporate correlated patterns of magnets with alternating polarity, designed to achieve a desired behavior and deliver stronger local force. By varying the magnetic fields and strengths, different mechanical behaviors can be controlled.