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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.
Microsoft already has universal cross flatform low level spyware as C# and .NET (which is used by tons of even native linux games, especially made with Unity), mono is sponsored by Microsoft and has telemetry. Wine also uses mono.
NOTE:
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Hence, a higher number means a more popular project.