Nice 👍 been using NLE as a docker server for a while, just switched to the HA integration (note both options use MQTT to allow HA full control with a climate card).

Nest Thermostat Gen 1 or Gen 2 running NoLongerEvil firmware. You can pick up a gen 2 on eBay for 20-30 USD. It only takes 5 min to load the firmware and there is a HA native integration. Rock solid hardware with no cloud, no google, and it works great with HA. Note that the gen 1 and gen 2 are pre Google buyout of Nest. There is also a cloud hosted dashboard if you want BUT there is no cloud self-hosted docker server and no cloud HA only version as well.

https://nolongerevil.com/

Edit: Nest is WiFi