See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
On Linux, you’ll need proper privileges to access the MCU. You can either use sudo when flashing firmware, or place [these files](https://github.com/micronucleus/micronucleus/blob/master/commandline/49-micronucleus.rules) in /etc/udev/rules.d/. Once added run the following:
```bash
sudo udevadm control --reload-rules
sudo udevadm trigger
```
### Instructions
**Reset Key**: Hold down key nearest to the USB socket while plugging in the keyboard.