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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.
From what I can see (and I could be wrong), from https://github.com/ppy/osu-performance every score sends an api request so its not offline.
gosumemory, use the Wieku branch https://github.com/l3lackShark/gosumemory
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