The APK build worked fine on Meta Quest 3 natively.
Here are the hand gestures for anyone who hasn't figured it out or watched the progress videos:
Clench fist: hold them clenched to charge up some magic. And then do one of the following...
Thumbs up: grow grass/plants
Point with index finger: fireball
Thrust out with fingers spread: lightning
It was fun growing grass and zapping/blasting my wife who was intruding in my VR space!