Work in progress, please come back later.
Super early instructions:
# build mod-os image (through docker and mod-plugin-builder)
# NOTE: takes a very long time!
make
# build plugins
# NOTE: takes a very long time!
make -C plugins
# run the container with USB souncard (requires root)
./mod-os/start.sh Rubix22
There are also releases for Live-CD/USB images.