Can someone recommend a tutorial on how to add Mixed Reality capture to my game?

Hi there!

I want to use a Vive Tracker to manipulate an external camera, and I want to add a person that will be filmed in real time from that camera to the 3d environment I have with a chroma key.

Can someone recommend me some documentation and/or tutorial about all this please?
I would like to have it working on a build, without the need of the editor (similar to the mixed reality in beat saber for example).

Thanks for the advice in advance!