Step 1 - Download OBS
How to get a circular webcam in OBS Studio (tip: I just took a screenshot of the file the guy in the video was working on and that is what I use!)
STEP 2 - Download NDI
NDI tutorial - watch this tutorial before you download. It explains everything.
STEP 3 - Get Audio Capture Driver
iShowU Audio Capture (just realized this is for Mac's only, you might have to explore other options if you are using Windows. Get in touch and I can help troubleshoot)
STEP 4 - Get Zoom (or any other video conference/streaming program)