Quest Home Menu Navigation without controllers or hands?

I'm making an exercise app for people with limited arm movements.

My users have very limited arm and hand movements. I have designed my games using Unity such that they can interact with a user interface using their head movements.

I am worried however that they might not be able to run the app from the home screen when the headset is turned on, as this requires either using the hand tracking or controller button presses. My users won't be able to do this.

Does anyone know if there is some functionality that would enable my users to run an app themselves without using the controllers or hand tracking? I was thinking of interacting with the UI using just their head movements with a cursor, or I also heard there was a voice command function.

Any help with this would be greatly appreciated!