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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.
Twine seems cool, although I haven’t used it. Ink might be useful to you, but I’m not sure entirely what you’re after. It’s not a visual aid.
Can't recommend https://github.com/dpradov/keynote-nf enough.
NOTE:
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Hence, a higher number means a more popular project.