I thought I would quickly share this, since it did cost some time:

• Example programs would run on Android emulators
• Example programs failed on iOS simulators, all permissions set, etc.pp.
• Symptoms: program goes briefly into listening then exiting
• Turned out, I had BT headset connected to the Mac Mini, switching to a cabled headset made it work.
• I could not test this on a real device yet.

Best

BP