I’m not sure what you mean by “open source compatible”. Do you mean the camera itself can have open source firmware installed, or that it’s compatible with open source NVR software such as Shinobi or ZoneMinder?

If the former, I know some of the Wyze cameras have that option. Like OpenMiko. There’s all OpenIPC, which does have a list of supported devices.

If the latter, any camera with RTSP and some sort of API to expose PTZ controls would do. My personal recommendation would be Axis, which makes solid cameras.

Incoming based on the code here:

https://github.com/coleblvck/MethodCall/blob/main/app/src/main/java/com/coleblvck/methodcall/services/ScreeningService.kt