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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.
That reminds me of based.cooking, which is a repository of recipes, but does not really have the family element you were talking about or GPL-3. However your idea seems pretty cool, I just don't know how someone could get families to learn about it.
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