Eric S Raymond and keyboardio
Eric S Raymond (aka esr) is a well-known early hacker, of unix generation, about same age as Richard Stallman. ESR is author of few unix software and books. A major figure in the open source scene about 1997 to 2005. And controversial for his gun advocacy and others.
esr is also a big fan of mechanical keyboards, in particular, the IBM Model M with its buckling spring key switch. [see Unicomp keyboard]
keyboardio is a new generation of keyboard design, by Jesse Vincent, also a old school hacker, perl expert and book author. 〔Jesse Vincent on twitter at https://twitter.com/obra 〕
here's my keyboardio review: Keyboardio Keyboard Review