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For provisioning the machines base image consider FOG it uses PXE and can remotely provision dozens of machines using multicast.
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InfluxDB
Purpose built for real-time analytics at any scale. InfluxDB Platform is powered by columnar analytics, optimized for cost-efficient storage, and built with open data standards.
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a very excellent tool to grab is TLDR https://tldr.sh/
NOTE:
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Hence, a higher number means a more popular project.