Nice. Have fun with it!

I think I heared that lan-only mode means you need to transfer the files to print via SD card.

I have the need for power metering only too.

I disabled the switch button on the plug so that they cannot be turned off by mistake. And set it to power on after power outage. Had no problems for a long time with this setup.

The hot water pipe to the kitchen is quite long. We have a pipe loop there with a pump. Back in the days we had an ordinary timer that let the pump run at the usual times when there is hot water demand to be expected.

I now use a Zigbee plug for the pump and added a button in the kitchen to start it manually. In addidion HA starts it in the morning and every time when somebody comes home. Another HA automation turns off the pump after 3 minutes and ensures that it does not start again for 30 minutes.

This comparison looks neutral: https://www.freie-messenger.de/en/systemvergleich/xmpp-matrix/

It reads “158 Tesla Megapacks”. But yeah, these could contain Duracell :D

… companies?

I always run occ upgrade and occ db:add-missing-indices after a package upgrade, just to be sure that I do not miss any database migrations. Using Archlinux I wrote a pacman hook so that it happens automatically.

I would go with the dongle (and sell the gateway). Zigbee2mqtt works really well for me.

But you will have to add all your Zigbee devices to this new coordinator.

You could have a look at Kerberos. That’s what Microsoft took as base for AD afaik.