Apple at the Worldwide Developers Conference introduced a new macOS Ventura feature called Continuity Camera, which is designed to allow you to use an iPhone XR or later as the webcam for your Mac.
Continuity Camera is meant to be used with a mount that attaches the iPhone to the Mac’s display in the right spot for all of the features to work correctly. Apple is planning to partner with companies like Belkin to create accessories for Continuity Camera, but these won’t be coming out until closer to the fall, so at the time being, there’s no official mounting solution.
If you want to try Continuity Camera as it’s meant to be used and you have a 3D printer, Jonathan Wight has created some mount patterns for the MacBook Pro and the iMac Pro. You can print out one of the mounts and attach it to the Mac to hold the iPhone in place.
Read more at MacRumors.com