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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.
Writing code from scratch. Again, a few options here. You could pick an OS interface and start playing with it, or you could take a more structured approach and follow something like Stanfords cs140e, which would have you write an OS for a rasperry pi from scratch.
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