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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.
I naturally contrast it with defrepeater.el (of which I am the maintainer, but I did not discover the mechanism it uses, I just packaged it). Of course, they don't do exactly the same thing. But when used with bindings in the style of a prefix key followed by single-letter bindings, it makes for convenient, easy-to-understand definitions and bindings, IMO.
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