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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.
About the 80% battery: Using Magisk, there's the "Advanced Charging Controller" module. Read the GitHub (under Terminal Commands, near the bottom) for how to modify (you'll need Termux to get into your phone's guts about that). I want to say my line in Termux was "acc -e 80" (without quotation marks), but it was long ago and I've forgotten. I also remember it didn't quite "take" until the third try (the phone kept charging to 100% when I needed to recharge). So, it was about a week before that worked, okay? On a good note, it's worked ever since. There's an F-Droid program that was supposed to do the same thing, but it never worked for me. Of course, both of those require rooting.