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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.
Mine is called zknotes. Web based. If you install elm and rust dev tools you can compile it for yourself and run your own instance. Otherwise, try it on my instance.
Re which "distro" to start with, Doom is great, but I recommend starting with vanilla Emacs and doing the minimal customization necessary to make it usable. You'll learn a lot more about Emacs that way, and you can always switch to Doom down the line if you want. u/daviwil's "Emacs from Scratch" series and accompanying YouTube videos are the best introduction to Emacs, and he also has some videos on org-roam specifically.