How to create a vr game using mrc?

I am currently studying making vr games. I am developing using Quest 2, but I want to make a game using mrc provided by Oculus. How do I make it like the mrc version of beatsaber?

I have mrc installed, and the beatsaber game works fine on obs.
I am currently making a vr game using unreal4. Can I just make a game and package it for Quest 2?
Should I render using composure?
If anyone knows, I would like to answer.