I completely understand, but how will they access it? Over something like teamviewer where you can also see the screen and control the mouse keyboard would be preferable to ssh access where you have no idea whats happening until it’s over.

On the other hand, whatever he’s going to do he should hopefully know beforehand, otherwise it just sounds like a fishing session to try a few things.

https://zigbee.blakadder.com/

You can also filter by zha, MQTT etc.

I have a combination of sonoff, ikea, lidl, and a few tuya. Be careful with tuya versions, I’ve bought hardware that wasn’t compatible but looked like it was

$6 x 14Tb = $84 month x 12 months = $1008 per year, or did I miss read the prices?

How much are you backing up? Admittedly backblaze looks cheap but at $6 Tb leaves me with $84 pcm or just over $1000 per year.

I'm seriously considering a rpi3 with a couple of external disk in an outbuilding instead of cloud

I have a combination of Lidl and ikea bulbs. The Lidl have lasted a couple of years, and are a bit ropey, plus you can’t get them when you want them (in the UK at least).

The ikea bulbs have been better, so far, and you can get hold of them a lot easier.

Both are connnected via a sonoff usb dongle and zha.

So how do you physically use these?

Have the tag on a surface, and touch your phone to it whilst connected to HA?

Never used RFID tags before, do you need to have the app open, or will it work with the phone locked?