Update: now available as a .f3d file with almost everything set via user parameters. Adjust as necessary to your specific monitor!

This model requires an Apple MagSafe charger to hold the iPhone (and keeps your phone charged while you're using it as a camera).
https://www.apple.com/shop/product/MHXH3AM/A/magsafe-charger
https://www.amazon.com/Apple-MHXH3AM-A-MagSafe-Charger/dp/B08L5NP6NG

Print both parts. Insert the monitor clip into the hole in the MagSafe holder. I used CA glue to hold the pieces together, but you may not need any glue once the MagSafe charger is inserted.

Depending on how your monitor is tilted and your position in the frame, the bezel of the monitor may partially obscure the lens with Center Stage enabled. I leave it off.