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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.
(*) https://github.com/funtoo/keychain. Not updated since 2018 but does the trick very well.
I have the same concern. I modified Pageant (Windows agent) so that it prompts me before signing anything which helps ease my mind, I only approve when I know I'm connecting to a new server. There are also options like requiring a Yubikey too (https://github.com/FiloSottile/yubikey-agent)
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Hence, a higher number means a more popular project.