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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 would start with working through an OS textbook. Tanenbaum is highly regarded although I worked through OStep and I felt it was very approachable. Also check out wiki.osdev.org. Also, here's a re-inplementation of Unix version 6. I've been meaning to play around with it for a while.
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