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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'm not aware of any tools that let you do this sort of thing. However, I bet you could modify OpenVR Advanced Settings to do something like that.
I don't know any existing overlay software that does this. Maybe Aardvark could do it in the future, though.
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