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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.
You could try MIR its an Open Source Repository Software Developed by German universities and librarys. You can create Aritcles or Journals and link them together and attach PDF or other files to them. You can also import metadata with a DOI.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.