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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.
The whole C compiler requirement is trivial on unix-like systems, and I've already created a great solution for Windows systems. So honestly it's not that bad.
After following the blog by /u/skeeto there is also the list by /u/jkitchin https://github.com/jkitchin/emacs-modules, and one can see the relatively few resources on the usage of dynamic modules, when by now it should be possible to point at some header file of some library and have a skeleton automatically generated for you in Emacs. And it is mostly because an earlier generations of hackers who would have done so by now have probably moved on.