Do you know Motion Eye?
This allows you to connect a camera to the USB port of a Raspberry Pi and perform motion detection.
There are plenty of options like sending an email when motion is detected, determining a detection area, choosing the number of images per second to display, etc.
Is it possible to have this system on Gladys?
You saw the video from the Poulain brothers 
https://www.youtube.com/watch?v=QzyX0Wt5QCM
For my part, I don’t really see the point of integrating the entire solution into Gladys.
I think it would be better to be able to trigger a scene in Gladys upon detection in Motion Eye.
There is a feature request for this here: API ouverte avec jeton d'authentification longue durée
I am guilty!
I don’t know what the best solution is, but if there is one, it might be something to propose.
You don’t actually need the open API, you can just use the MQTT integration to publish a value in a topic, retrieve it in a device and create a scene that listens to it
It could be nice to have a tutorial or documentation to do this.
This is not a big investment in equipment either.
However, can we use the same Raspberry as the one from Gladys?