mutable-instruments
Mutable Instruments is an absolutely amazing synthesizer company that produces open source hardware with open source firmware on it. I have several of these and I love poking around in the firmware (check out this brilliant tutorial om how to do the same).
The company has even open sourced it’s development environment which on most systems may be setup in a virtual machine.
But this is not so easy on Arch Linux, since these virtual machines rely on old(er) kernels, and I am always on bleeding edge kernel versions on my development laptop, so I decided to setup my own little development environment for hacking Mutable Instruments (and similar) firmwares directly in Arch with no virtual machines used and it seems to work quite nicely.