Question / Help Using OBS to as the Zoom input Camera

As so many are doing, we have been forced to change how we do worship at our church. I would love to be able to use OBS to have my iPhone XR (with OBS Camera app installed and connected) be my camera, run through OBS and have the input camera on Zoom be OBS. I downloaded the NDI thingymagig on my MacBook Air (running latest OS version of Catalina) and cannot figure out how to set up the external feed from OBS to look like a camera for Zoom.

Is this a setting I need to change in OBS or is this a problem with Zoom.

Everything online shows how easy this could be for a PC, but I have a Mac.

Any help is appreciated.

Thank you