The design is based on the excellent Dactyl keyboard, generated with https://ryanis.cool/cosmos/ and it runs the excellent qmk firmware. It is handwired: 
and I have also made a palm support using inkscape and openscad 
All printed on a reprap prusa i3 derivative.
This helps me use my computer with less pain, so I want to call out all the wonderful projects and people who contribute to them which made it possible.
Total cost? $60 aud, amortised filament ~15 bucks worth maybe? and a lot of my time haha.
Some of you haven't read the bash manual and it shows.
Blow your mind to know about bang patterns. You've used !! but do you know about !$?