jappie3 / zmk-corne-config

The configuration files for my wireless Corne keyboard

Crkbd ZMK config

Packages

This flake contains the following packages:

• crosstool-ng -> cross-toolchain generator used by Zephyr
  • Takes about 20 minutes to build*
• zephyr-sdk -> RTOS for multiple hardware architectures
  • Takes about 1h15m to build*
• corne_left, corne_right, zmk_reset:
  • ZMK firmware for the left & right halves of my wireless Corne, built with the config in config/
  • zmk_reset -> settings_reset shield, see https://zmk.dev/docs/troubleshooting#split-keyboard-halves-unable-to-pair for more info

Note: these packages are configured for the arm-cortex_a15-linux-gnueabihf architecture and the arm-zephyr-eabi toolchain, as specified by two variables at the top of the flake.

* Build times are measured on a laptop with an AMD Ryzen 7 5800H (16 cores @ 4.46GHz)

Repo structure

.
├── config
├── corne-ultralight-pcb
└── zmk-zephyr

config/ contains my personal ZMK config files.

All the Kicad files in corne-ultralight-pcb were originally copied from petejohanson's fork of foostan's crkbd repo, more specifically the corne-ultralight branch. This branch added support for the nice!view display, I then modded the PCB to support Cherry Hotswap sockets.

The zmk-zephyr/ directory contains the minimal files necessary to run west manifest --resolve. The bash script in that directory can be used to parse the repos & revisions from west manifest --resolve to the builtins.fetchTarball format that Nix can use.