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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 also needed to write a CLI tool for linux/mac: https://github.com/kelvie/gbmonctl, to change the brightness / other settings since the (awful ) software is Windows only.
If your monitor supports DDC then you could have it auto-switch inputs based on your USB KVM: https://github.com/haimgel/display-switch
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Hence, a higher number means a more popular project.