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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.
To answer the OPs question, elixir is great at this. You should play with livebook, https://livebook.dev.
fly.io uses it as a way of doing app documentations that you can actively play with in the docs, article does a really good job of explain what else it can do outside of a ML context. https://fly.io/blog/livebook-for-app-documentation/
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