Probably the best place to get started is to read through the updates to the HIG, while I've been trying to think through how best to develop for visionOS for the last two weeks, the folks at Apple have been thinking about for years. So best to learn from their experiences.
https://developer.apple.com/design/human-interface-guidelines/designing-for-visionos
@_Davidsmith Something I've always appreciated about Apple's approach to computing is the HIG. If I recall correctly, it dates all the way back to Wozniak including examples of good human computer interaction in some of the programming tutorial discs that came with the apple ][ series.
