At first - I really like your project and amount work done! Just curious if you have a plans to further evolve ELK Audio OS and use newer realtime kernels instead Xenomai 3 ?
A bit ago, I’ve been able to port EVL project https://evlproject.org (aka Xenomai 4) to my hardware based on Amlogic SOC. Of course I had to write my own realtime audio driver for built-in SOC audio system, but an outcome was extremely great - very stable and absolute low latency - because there were no needs to have transfers over SPI or whatever.
At that point of time - I’ve found your project and ported sushi, twine and raspa - to new libevl approach offered by EVL project and that worked as charm.