Here are my readings for my outdoor Airgradient Open air and indoor Airgradient One.
Doors and windows are closed since yesterday afternoon and my HVAC uses MERV 13 carbon filters. I have set the fan to run a bit faster in order to filter out more PM. You can also turn off the air exchanger a bit but you need to keep a eye on CO2.
I have the heavy duty relay on my water heater, their water main valve and a bunch of leak sensors.
They are not cheap but the build quality is good. And you probably won't find many Canadian, energy metering outlets that will be priced cheaply.
Sinope is Canadian and have zigbee smart plugs. https://www.sinopetech.com/en/collections/all
They will try to push you to their platform but their Zigbee stuff is well supported in Zigbee2mqtt and ZHA.
These are the latest official configs for the echo.
I have a surface 8 pro too and the easiest way to set it up was to use Aurora (or bluefin if you prefer Gnome). All the drivers were preloaded and if you want to use luks with the tpm it is a breeze to setup.
You can achieve the same with other distros, I've done it with Arch and Nixos too but if you don't have a solid Linux background I strongly suggest Aurora or Bluefin for an easy and solid installation.
This works very well for tech enthusiasts and people who self-host nextcloud at home.
The issue is when you are a government or university, it becomes harder to get all your users (which are probably not all tech savvy) to install a third party app store deal with the Android warnings about installing from third-parties, etc etc.
And this is probably the user base Google are targeting with this move (assuming it's malicious) . When the higher ups complain that their files are not syncing and need to install things with a special procedure they sometimes wonder why they are not using M365 or Google which seems hassle free.
I guess we will now have to drive through pot holes or damaged road instead of around it? What a stupid idea...