OBS Studio: Setting up and using multiple webcams in OBS Studio - YouTube
How to Use Phone as a Webcam in OBS Studio - TechWiser
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How to Create Multiple Instances of the same Webcam in OBS Studio [Nested Scenes] — Stream Tech Reviews by BadIntent
OBS Studio does not take 2 webcams at the same time. | OBS Forums
Recording multiple camera angles, full-size, simultaneously, on a Mac | Jeff Geerling
How to Create Multiple Instances of the same Webcam in OBS Studio [Nested Scenes] — Stream Tech Reviews by BadIntent