Is your software open source or available, it looks like it's python from the video. I want to buy your kit, but I'd like to build a robot that drives around my house while we are out, with a camera. So I would want to be the only one with access to the camera, turn it on when the alarm goes on. I a dev, I can hack python just fine. The reason I haven't done this myself is all the work to get to the hardware, and basic software.

Guessing the software arch, you encode the video on the robot and then send it to your backend site. Then you have a separate listener on the pi, that just takes single commands from the website. I imagine not running a webserver on the pi makes the response much faster and doesn't run down the battery. So for a private webcam in my house, a kind of alarm system, i need a system there to capture the video stream and act as a remote host that I can access from outside. I don't want to copy your webserver stack, I'd prefer something lighter weight, that I could run as a service on a linux or windows pc.