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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 free plugin by OBKF seems to be exactly what you want. Godot3 version available on the AssetLibrary. Unfortunately there is no Godot4 version of it. You could ask for one on the github page though, or look at the Godot3 version to learn how this is done.
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