The FAW36 is a split bluetooth keyboard that uses Seeed XIAO BLE boards powered by ZMK.
The PCB is reversible as well as the top and bottom plate.
The PCB support both MX hotswap sockets and standard 5 pin MX solderable footprint.
As for the diodes the PCB supports both THT and SOD123 footprints.
Then encoders are EC11 but as of today only the left one is working.
The name comes from the four color theorem which state that.
No more than four colors are required to color the regions of any map
so that no two adjacent regions have the same color.
And written on the PCB is the letter of De Morgan to Hamilton to Sir William Rowan Hamilton in which he explains the findings of his student.
https://en.wikipedia.org/wiki/Four_color_theorem
The config files: https://github.com/Germain-Gadel/zmk-config-faw36