I present the Viterbi engram keyboard layout!
Viterbi is a split ortholinear keyboard by keeb.io. It stikes a nice balance of providing sufficiently many keys to not miss anything from a full keyboard, while still being able to reach them without much wrist contortion.
The engram layout is a keyboard layout based on frequency data of letters in English words that is designed to be as ergonomic as possible: more frequent letters require less finger movement.
This is my adaptation of the engram layout for the Viterbi keyboard. To make layout symmetric, I moved Q on the left side. This leaves space for both left and right SHIFT keys. TAB and ENTER are on their standard locations. In addition, I made the layout Emacs-centric by placing ALT and CTRL on the thumb row, on opposite halves of the keyboard. SPACE and BACKSAPCE are also on opposite halves. I have made sure standard Emacs key combinations are easily executable. Note that the thumb rows are offset relative to the main keys, giving it a ergonomic quality.