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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.
This is the tool, though you'll need a DS flashcart to run it from. I know you'll need either a slot 2 device or wifi and any FTP server program to backup saves. I'm not sure whether it can restore them without this from the flashcart's SD though.
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