You will have to reach out to the author of the project as that was not written by the PlayCanvas team.
You can find the author at:
- Created a VR Interaction Framework for PlayCanvas
- https://www.reddit.com/r/OculusQuest/comments/sbwslu/created_a_vr_interaction_framework_for_playcanvas/
While we can help with specific questions, we can’t really help with how the overall project is put together. For that, you will need to reach out to the author