Open source keyboard typing project

I am completely unhappy with the situation with manufactured keyboards, so I initiate an open project to create a keyboard designed for printing with a ten-finger blind method.

At the moment, the layout of the keys has been developed, tested on a programmable keyboard layout for KBM-105 trading terminals.

Keyboard Features

1. Compact size, easy to reach to any key "to the touch."
2. Numbers, punctuation marks, and function keys are located on the main block of keys, but work with the Fn key pressed
3. The cursor keys are located in such a way as not to remove the hand from the starting position of the print, you just need to hold down the FnNav button with your thumb
4. It is possible to work with one hand (for right-handed left, for left-handed right), for this you need to hold down the FnRev button
5. There are separate buttons to switch the language ( Alt+Shift ), and copy and paste text ( Ctrl+Ins / Shift+Ins or Ctrl+c / Ctrl+v ).

The keyboard is completely symmetrical, another microcontroller firmware is used for left-handers (the type of microcontroller has not been selected yet). The keyboard is fully compatible with the standard, you can use any keyboard layout, and print in any language.
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Project wiki: http://kbd.klava.org/

PS Already after the publication of this article, I discovered an implemented open-source project www.humblehacker.com/keyboard