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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.
it exists now (i use my iphone for DIY loop with dexcom G6 and omnipod dash) but you need to learn how to build the app yourself, apple will not allow something like this on the appstore. It's really great when you can get it to work https://github.com/LoopKit/Loop
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