I have a Pi Zero 3 too, couldn’t get mine to work either. The first issue was that i couldnt get the mcu running on debian bookworm (supplied by the orangepi manufacturer)
If you get the error “Got error -1 in sched_setscheduler: (1)Operation not permitted” when running the command supplied by sineos
Running:
sudo sysctl -w kernel.sched_rt_runtime_us=-1
echo “kernel.sched_rt_runtime_us = -1” | sudo tee /etc/sysctl.d/10-disable-rt-group-limit.conf
will fix the issue