I haven’t tried, but I wouldn’t recommend it. It was years ago that I set it up, but I belive it wanted an app. I would stick with one designed for local only.

I have an EcoBee thermostat which is typically web managed, however it also supports HomeKit. Using the homekit plugin for HomeAssistant I now get best of both worlds.

If I were to do it again I might consider a Z-Wave or ZigBee thermostat, but living in a cold climate I really appreciate knowing that if for some reason my home auto fails there is a backup service to alert me, or vice versa.