Corney - Corney Chocoflan and Classical Corne keyboard

• body remixed from this: https://www.printables.com/model/1020389-wireless-corne-chocoflan-minimal-keyboard-case

Related Projects

• Dacty: https://github.com/maxistar/dacty

Layout Helper

Use Keyboard Layout Helper to inspect and tune layers visually: https://projects.maxistar.me/keyboard_helper/

What's here

• config/: ZMK config for a split Corne on nice!nano (keymap, macros, Bluetooth bindings, west manifest).
• body/: printable/parametric case and plate models for the Chocoflan remix (scad, stl, step, 3mf).
• build.yaml: build matrix for CI (left/right halves on nice_nano@2.0.0).
• zephyr/module.yml: declares the repo as a ZMK module, including the Corney shield root and the custom GATT layer exposition feature.
• docs/gatt-layer-exposition.md: UUIDs, data format, and build notes for the BLE layer characteristic.

Clone

git clone https://github.com/maxistar/corney.git
cd corney

Prerequisites

• Zephyr SDK and west already installed (ZMK setup guide)

Build firmware (locally)

1. From the repo root, pull ZMK: west init -l config && west update.
2. Build each half (outputs land in build/<side>/zephyr/zmk.uf2):
   • Left: west build -p -s zmk/app -d build/left -b nice_nano@2.0.0 -- -DSHIELD=corney_left -DZMK_CONFIG=$PWD/config -DZMK_EXTRA_MODULES=$PWD
   • Right: west build -p -s zmk/app -d build/right -b nice_nano@2.0.0 -- -DSHIELD=corney_right -DZMK_CONFIG=$PWD/config -DZMK_EXTRA_MODULES=$PWD
3. Copy the corresponding UF2 to each nice!nano over USB bootloader.

Build firmware with a custom Bluetooth name

The default Bluetooth device name is Corney. To override it, pass CONFIG_ZMK_KEYBOARD_NAME when building the left half.

Local build examples:

• Left: west build -p -s zmk/app -d build/left -b nice_nano@2.0.0 -- -DSHIELD=corney_left -DZMK_CONFIG=$PWD/config -DZMK_EXTRA_MODULES=$PWD -DCONFIG_ZMK_KEYBOARD_NAME=\"CorneyMX\"
• Right: west build -p -s zmk/app -d build/right -b nice_nano@2.0.0 -- -DSHIELD=corney_right -DZMK_CONFIG=$PWD/config -DZMK_EXTRA_MODULES=$PWD

Do not apply the custom name override to the right half. The left half is the central, host-paired side, and the right half should be built with its default configuration.

CI/CD builds with a custom Bluetooth name

The GitHub Actions build workflow accepts an optional keyboard_name input when started via workflow_dispatch.

1. Open the Build ZMK firmware workflow in GitHub Actions.
2. Click Run workflow.
3. Set keyboard_name to the Bluetooth name you want, for example My Corney.
4. Run the workflow and download the generated firmware artifacts.

When keyboard_name is provided, CI applies it only to the corney_left build. The corney_right build remains unchanged.

If keyboard_name is left empty, CI uses the repo default name Corney.