Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

README.md
# muzfuz DZ60 layout

```shell
make dz60:muzfuz
dfu-programmer atmega32u4 erase --force && \
dfu-programmer atmega32u4 flash .build/dz60_muzfuz_v2.hex && \
dfu-programmer atmega32u4 reset
```