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Automated Cooling
(feddit.uk)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
Good points.
That's what I'm doing for the winter: dumb dehumidifier on smart socket. HA measures the humidity and turns it on / off.
I was hoping for something that could cool and report back what it was doing to HA, but I think I'll have to go with the same approach as the dehumidifier.