firmware built on the [Zephyr™ Project](https://zephyrproject.org/) Real Time Operating System (RTOS).
The goal is to provide a powerful, featureful keyboard firmware that is free
of licensing issues that prevent upstream BLE support as a first-class
feature.
firmware built on the [Zephyr™ Project](https://zephyrproject.org/) Real Time Operating System (RTOS). ZMK's goal is to provide a modern, wireless, and powerful firmware free of licensing issues.
## Features
At this point, ZMK is still missing many features. Currently, the working bits
include:
- Wireless connectivity via BLE HID Over GATT (HOG)
- USB connectivity
- Low active power usage
- Split keyboard support
- [Keymaps and layers](behavior/layers)
- [Hold-tap](behavior/hold-tap) (which includes [mod-tap](behavior/mod-tap), [layer-tap](behavior/layers))