Next stage of the project (question before installation)

[epigraphe]

Hello. I was interested in your project, read 3 articles on the medium and now I’m planning to install a copy for myself.

I have a task: I need to track the number of people in a frame in real time. I must have at least 4 cameras on the screen. At the same time, I need to display an image from them and some statistics.

Will it be possible to expand the current webapp to display multiple cameras at the same time?
Can I write directly on the image the number of people in the frame?
Is it possible to write data somewhere for later processing?
For example, display a histogram with the number of people in the frame by hour. Or, for example, if there are less than 5 people in the frame, issue some kind of trigger.

I’m just starting to work with computer vision and streamlit in particular and I would like to understand whether the implementation of my tasks is possible in principle?