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Home Assistant
:house_with_garden: Open source home automation that puts local control and privacy first.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Home Assistant
Who needs a cloud, when you can be your own cloud. I would tell you to check out OpenHAB It will be a whole lot better than Home Assistant without an internet connection. Ask me how I know. Also HA and OpenHAB have a little bit of a learning curve, but for some of the simpler automations you are talking about, you can completely point and click it with OpenHAB. I also found it to be more stable.
NOTE:
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Hence, a higher number means a more popular project.