New guy here with 25ish device HA install with hardware reviews... UPDATED after being in use for over 2 years and now 70ish devices

I had found this before setting them up (I wish I could say I invented the wheel, but I didn’t):

I have basically done the same for my automations.

Each smoke/CO detector shows up as two sensors (one is TYPE, and the other is LEVEL)
Type sits at 13, and level sits at 255 once initialized and in standby