@Topi Yeah, that's too bad... I'll try the Linux binary in a VM, or try remoting into my Windows machine.

Thanks - I was confused because I'm on a Mac, so looked at the Docker distribution here - https://hub.docker.com/r/visionappster/va-engine - which doesn't mention Builder - so I guess that's just the engine.

The links for "Get Builder" go to https://developer.visionappster.com/visionappster.html, which just has downloads for vision appster. How do you get Builder?
I've got vision appster installed on a raspberry pi, and can go to its webpage, and the camera is working okay.