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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.
If you just need a system to practice VHDL / Verilog on, the $50 entry point is a bit better. It won't be fast or big, but there's plenty to do and learn on something like that. The ICE40 is large enough to get a RISCV core for example.
NOTE:
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