MVP to full product is definitely the bigger part of the work. In the environment of early COVID, I think an app that had some rough edges would've still been very useful. Perfect is the enemy of good and all that. Phone as webcam shouldn't exist at all (how do you even mount it?), but somehow the video and audio quality on phones is still years ahead of what's available on even high-end laptops.
Rough edge apps have been around for years. I tried one that worked in the browser and could connect to OBS on your laptop, it was just too cumbersome though.
Apple actually did come up with a good solution for mounting the phone. A small disk that connects to the iphone with magsafe and has a flip out tab that can hook on to the top of the macbook. It's surprisingly stable and nice.
