Hi Lumpy,
the idea of enabling voice-triggered commands was part of this project from the very beginning, this is the reason why you can add two I2S Microphone modules to the PCB.
You solution is nice and easy to apply, but unfortunately I’m not an Apple user.
@shivasiddharth made a very nice tutorial for integrating Google Assistant with Volumio
After my holidays I will try to make it up and running, adding voice-triggered commands will make this little device the definitive kitchen radio 