Might turn into a Streetlamp Le Moose situation.

HeavyScript

What’s the thermostat controlling? How is it wired up? I replaced mine with ram esphome with a temp sensor and a relay that bridges the pins when it wants to turn on. Mine is connected to home assistant but i think you can use esphome devices stand alone.

I did this for a while, but decided to just run opnsense on bare metal, I didn’t want my whole network going down if I had to restart Proxmox or something. It’s way overkill but it’s running opnsense, adguard and will soon be running ngnix hopefully.