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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.
Cool find! From the docs: /// It's intended to be used by packages that need to share a modest /// number of values among their own components. /// /// SharedAppData is not intended to be a substitute for Provider or any of /// the other general purpose application state systems. SharedAppData is /// for situations where a package's custom widgets need to share one /// or a handful of immutable data objects that can be lazily /// initialized. It exists so that packages like that can deliver /// custom widgets without requiring the developer to add a /// package-specific umbrella widget to their application. https://github.com/HansMuller/flutter/blob/52db14b48d42f3d95e94c691a10238716370d8e9/packages/flutter/lib/src/widgets/shared_app_data.dart