The Dactyl keyboard is made by Matt Adereth, around 2014-04.
Total key count: 70.
Typing on the Dactyl Keyboard
Dactyl keyboard is the best
The best keyboard, that i've ever put my hands on, is now, Dactyl keyboard.
[see San Francisco Bay Area Keyboard Meetup 2017-11 Impressions]
It's super light and elegant! and, is the most comfortable of all, more comfortable than Kinesis Advantage.
3D Modeling, Keyboard Design, Clojure, and Emacs
[ https://www.youtube.com/embed/uk3A41U0iO4 ] clojure.core/typing - Matt Adereth Nov 17, 2015 ClojureTV (2021-07-06 video embed removed, because apparenty the video owner disabled viewing it outside YouTube)
Truely enjoyed this video. You see 3D modeling software, 3D printing, keyboard design/making, using clojure to control, and finally, emacs too!
See his blog at [3D Printing With Clojure By Matt Adereth. At http://adereth.github.io/blog/2014/04/09/3d-printing-with-clojure/ , accessed on 2015-11-16 ]
Where to Buy
build instructions https://github.com/adereth/dactyl-keyboard
prebuild for sale https://ohkeycaps.com/products/built-to-order-dactyl-manuform-keyboard