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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.
yt-dlp - it started with just downloading YouTube videos but now it supports pretty much all online video sites.
I can only recommend OsmAnd (you can also get it on F-Droid), it even allows you to plan your route by road type, inclination, etc. - genuinely saved my ass in less than ideal infrastructure conditions
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.