Firmware

NXTKB keyboards run ZMK firmware. This section covers the firmware workflows you need after changing keymaps, device settings, or keyboard configuration files.

• How to Flash a Firmware explains how to copy .uf2 files onto the keyboard controller.
• Build your own firmware explains how to build Ferris Sweep Pro and Ferris Sweep firmware with GitHub Actions or a local ZMK workspace.
• Sweep Pro Configuration Files explains which .keymap, config/*.conf, and build.yaml files control detailed Sweep Pro behavior.
• Ferris Sweep Configuration Files explains which cradio.keymap, cradio.conf, behavior, and build.yaml files control detailed Ferris Sweep behavior.