qmk_firmware/layouts/community/ortho_4x12/jackhumbert
..
config.h
keymap.c
readme.md

Jack's Planck Keymap

Jack's Planck Keymap

Link to KLE of above image

Mostly standard Colemak, but the shift and symbol layers are influenced from BEAKL: https://ieants.cc/code/keyboard/beakl/

Unfortunately I haven't figured out a good way to adapt this to a 2u format yet.