Nest Learning Thermostat
Nest Thermostat can learn your habits and start to save you money by automatically adjusting the temperature.
Home Assistant Integrations
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Honestly probably overkill if you are connecting your thermostat to Home Assistant. The integration works fine and everything, but the thermostat includes a lot of extra features, like home / away detection that just end up getting in the way.
I would say this should be removed, as it mentions that Google changed how the Works with Nest program works, and new users are unable to set up a Nest thermostat: https://www.home-assistant.io/integrations/nest/