Rendering / Streaming external camera on Oculus (Augmented Reality)

Hi everyone,

I have a project of Augmented Reality by using Oculus Rift and 2 Webcams attached to the Headset.
I need each camera to render and display on each eye. I found some information online at the oculus website (https://developer.oculus.com/documentation/unity/latest/concepts/unity-mrc/) But it seems that it is outdated with a lot of dead links. So I would like to ask you if you have any clue / links or anything that could help me to start this project please.

Thank you for your help