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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.
Step 2: Install it from the MacType homepage, it is an open-source project so it seems safe to me. I recommend installing it in "Load with MacTray" -> "Standalone Mode".
NOTE:
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Hence, a higher number means a more popular project.