I used the ffmpeg plugin "Homebridge Camera FFmpeg" with the following configuration and was able to get it to work. They've recently added some new features that I haven't implemented yet but this is good enough to get started."cameras": [{"name": "...

I was able to get it to work by disabling audio recording on the cameras. There are a couple of other settings too, let me know if you are unable to get it to work I can try and assist.