Thanks for this great project and all the efforts you made to bring it forward!
Do you see a possibility to add a camera selection feature?
Or how do you select the camera currently?
It seems to me, that it prefers external cam over an integrated notebook cam?
i looked a bit into the source and think you'd need to update WebcamDisplay.js according to this sandbox sample
https://codepen.io/mozmorris/pen/KKwdOPO