I don’t know about the UX, but if you want peoples to use your app, it need to look nice.

If only it didn’t looked like a 20 year old software.

When you are bored, backup a VM then hard kill it and see if it manage to restart properly.
Software should be able to recover from that.
If it doesn’t, troubleshoot.

How did you setup your home assistant ? Check if you somehow the container traffic doesn’t route through your ISP box for some reason :p

What do you mean by extension cable ?

Directly plugged into a raspberry pi I suppose ?

How does your home assistant get zigbee ?

Why did your wifi went down ?
Some wifi and zigbee are on the same wavelength, if someone was jamming it (this is illegal), both can be taken down like this.