That’s a very good idea!
I would envision a neutral video presenting a home automation assistant, to spark interest and show that it’s simple to make your apartment or house smart from a hardware point of view.
At the end of the video, there should be only a single pre-made dashboard showing only the products you demonstrated in the video, with Gladys of course, to show the ease of use (on/off, simple automation)
In this video, I wouldn’t yet show pairing devices or setting up scenes or commands on the dashboard (that’s more what the training will cover) but just explain that you did it in 5/10/15min.