This is my personal layout for the Redox keyboard, heavily inspired by the Miryoku layout.

Build instructions (Arch Linux)

1. Clone the QMK firmware repository and this repository:

   git clone https://github.com/qmk/qmk_firmware.git
   cd qmk_firmware/keyboards/redox/keymaps
   git clone https://github.com/extheo/redox-layout extheo
       

2. Install the build tools:

   sudo pacman -S avr-gcc avr-binutils avr-libc avrdude
       

3. Add yourself to the groups necessary to access serial devices:

   sudo gpasswd -a $USER uucp
   sudo gpasswd -a $USER lock
       

   Log out and log in for this to take effect.

4. Stop ModemManager if it is running, as it grabs serial ports:

   sudo systemctl stop ModemManager
       

5. Build the firmware:

   make redox/rev1:extheo
       

6. Plug the left (master) side of the keyboard, and flash it:

   make redox/rev1:extheo:avrdude
       

   Push the reset button at the bottom of the keyboard, when avrdude prints the corresponding message.