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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.
Smart Tube Next [Android TV/Android Based Boxes/Nvidia Shield/Amazon Fire Stick]
Look into SponsorBlock, it allows you to skip Sponsors and other built in ads.
Check out Newpipe. Might not serve for what you subscribe premium for, but for many, I believe it's great. Basically YouTube free from Google's tracking, ads, and other crap.
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.