Hi - I went through the BlueIris performance stats page.
I sorted by total MP/s they were handling.
I am putting in a system with 4MP+ cameras, approx 48 cameras in total (3600MP/s), mostly onsite, around 16 offsite in locations around Australia.
I will be doing Deepstack/ALPR and I'm looking into HASS/Google Home as well.
My machine specs:
Intel i7-10700K 8 Core CPU
32GB DDR4-3600
OS Drive - 256GB NVme
5 X 8TB 7200RPM HDD on PCIe HW RAID Controller RAID10 w/Hot Spare = 16TB storage
Windows 10 x64 Pro
VirtualBox running HAOS
Watchs this space. I will keep up to date.