Building Zephyr™ Mechanical Keyboard (ZMK) Firmware with Nix

This extension is added by MoErgo for the Glove80 keyboard.

Nix makes setup significantly easier. With this approach west is not needed. You can however still choose to build using the standard Zephyr west toolchain if you wish.

To build a target

In ZMK root directory,

nix-build -A *target* [-o *output_directory*]

For example,

nix-build -A glove80_left -o left

The output_directory nix creates is a symlink. If you prefer not to rely on symlink (perhaps because you are using WSL on Windows), you can make a copy of the resulting uf2 file using:

cp -f $(nix-build -A *target* --no-out-link)/zmk.uf2 .

To build Glove80

In ZMK root directory,

cp -f $(nix-build -A glove80_combined --no-out-link)/glove80.uf2 .

Adding new targets

Edit default.nix and add an target based on zmk

An example is:

glove80_left = zmk.override {
  board = "glove80_lh";
};