I've never had much joy with AdGuard via docker. There was usually some error or glitch I couldn't get fixed.

I've always ended up installing it directly. It still works happily with wireguard and all the others that I do have installed via docker.

Home Assistant

https://www.home-assistant.io/

A tp-link wifi plug that wouldn't work if the internet went down.

Zigbee plugs and HA all the way after that!

And I avoid tp-link products with a passion.