I have a couple of setups, one has poe ip cams writing to a surveillance nvr which looks after motion detect etc. The other system relies on the camera software detecting motion and writing to a Nas.

Both systems are on their own subnet and are firewalled from everything else. I VPN as and when required.

I’ve found motion detect with alerts to be difficult to tune to get good detection without false alarms.

3 day working week will more likely mean companies cutting staff by 50%. Can’t imagine most people being able to live when only working 3 days.