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InfluxDB
InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
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Sure, https://pivpn.io/. It’s designed to run on a raspberry pi but you can run it on any computer with Linux at the least. Not sure if it supports other OS’s
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.