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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.
BTW, Do not feel discouraged by all this! I start working with https://tablam.org in part to improve the kind of stuff I use python for. But to justify the switch, even for myself, I feel the need to do a lot of other changes (so not even try to just have python+) and other things have proven to be more challenging than anticipated, or have demanded to rethink what to do because as a solo developer I know certain goals will not be possible for version 1.
https://www.rust-lang.org (for C/c++)
https://swift.org (for obj-c)
https://elixir-lang.org (for erlang)