[bronco21016]

You can send the iPad screen directly into OBS using NDI. NDI HX Capture is the app for iOS/iPadOS. You'll need the NDI plugin for OBS.

I'm not sure which ends up being more reliable but I've had great success with NDI.

[iamlemec]

Oh that looks excellent, I'll check it out. Yeah, the latency right now is decent enough for whiteboard writing but could definitely be better. Only tricky thing might be that some apps have AirPlay integrations that will just broadcast parts of the screen, like only the writing surface without the UI elements up top. Not sure if that carries over to NDI, but I could always just crop it in OBS.