Overkilled. I use an Optiplex Micro PC with I9-9900T CPU with 32GB of ram and a Synology NAS. The PC runs Proxmox with 4VMs; Windows 10 with BI, Debian with CodeProject.AI thru CPU and ALPR in Docker, Home Assistant, another Debian CLI only.
I got 15 cameras, including 4 LPR cameras.