Terms & Conditions PDF:
https://developer.apple.com/visionos/developer-kit/apply/sta...
> You must ensure that unauthorized persons (including any family, friends, roommates or household employees) do not access, view, handle, or use the DK.
If that happens then this clause means you are in contract breach.
Its an extension of the NDA to everyone around you, but since you can't bind them to an NDA, you say that the person who is bound to it is on the hook for transitive breaches of the NDA
It's not.
Edit: No mention of costs in the T&Cs, but i did find it amusing that you must use it in a room with "solid doors, floors, walls and ceiling, and locks that can be engaged when the DK is in use"