This right here is why I bought the slightly lower-end two-speed system instead of the variable-speed system (it's a Trane, I believe). I'm just not interested

This right here is why I bought the slightly lower-end two-speed system instead of the variable-speed system (it's a Trane, I believe). I'm just not interested in getting tied into their proprietary ecosystem. I have a relatively simple Honeywell Z-Wave thermostat, and it works great with Home Assistant.