Use rich notifications from non-video doorbell to open up live-view from existing HKSV camera?

[pfeifix]

Hello,

currently I am using a Shelly 1 device running the Mongoose firmware configured as a stateless button doorbell (old-style "not supported" accessory type).
However I would like to benefit from rich notifications so I am considering moving over to homebridge-camera-ffmpeg.

I have a HKSV camera and a door lock configured to the same room in the Home App.

Is it possible to configure homebridge-camera-ffmpeg in a way that I get rich notifications from the doorbell service which - when clicked - open up the existing HKSV camera's live view together with the door unlock button?

If I understand it correctly the "normal" configuration would include a separate URL to a RTSP stream. As my camera (Logitech Circle View) does not provide one, is it OK to omit this setting and the door bell rich notification produced by the plugin would automatically redirect me to this camera's live stream when all accessories are placed in the same room?