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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.
Another option, btw, if your PC is up to it: there has been a really nice release of a raytracing mod for HL rather recently (https://github.com/sultim-t/xash-rt/releases), this also breathes some live into the old game.
NOTE:
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