If you’re on Debian, it’s the tried and true method. The config is dead simple for most upgrades, just un-comment the line in the config file next to the type of upgrades you want, stable or testing. It can take some debugging if you have a package with it’s own APT repo. It’ll just ignore those updates by default.

unattended-upgrades is annoying? How so?

For Unifi devices you setup a Virtual Network then assign the guests to that. https://help.ui.com/hc/en-us/articles/115000166827-UniFi-Hotspot-Portal-and-Guest-WiFi

Ever hear of the fable “The boy who cried wolf”?

One catch is that you have to assume it’s gonna be sending data to China or at least have a hidden backdoor, possibly both. That may not matter depending on what they are doing.

Stop voting Democrat, obviously. Since it was their policies that caused the high prices.

Lol you allow homeless to use your bathroom, then we’ll talk. How much literal shit do you enjoy cleaning? 'Cause there’s gonna be loads.

The answer is paid toilets. Cause anything available for ‘free’ will be abused.

Oscilloscope can do it - https://hackaday.com/2020/12/14/dead-simple-time-domain-reflectometry-with-just-a-battery-and-an-oscilloscope/