Place a V90 pointing at your front door or backup server rack. Connect it to an old laptop running Contacam. In "Hot mode" (low latency), Contacam will record a pre-buffer of 5 seconds before the motion happens. You will catch every delivery driver or intruder.

: For constant monitoring, configure the program to run as a Windows Service so it continues recording even if no user is logged in. ContaCam - Video Surveillance software

With this setup, your system becomes a fast, free, and highly responsive security solution – ideal for "hot" (high-traffic) monitoring.