Implementing a Desktop Mode for an XR experience?

I have been developing an XR experience utilizing the VR Core template. What steps would I need to take to implement a “Desktop mode” for the experience. I know I would need to write a script to check for if a VR device is present and switch between a VR Camera and Desktop camera, but beyond that I’m somewhat lost. I’m pretty new to Unity development and more of a 3D artist than a Dev. Any guidance would be greatly appreciated.