Welcome to the RB family, YTDLnis 🥳
apt.izzysoft.de/packages/com.d…
Was quite a ride to get there (github.com/deniscerri/ytdlnis/…), but thanks to joint efforts of the app team and the IoD team, we got it tackled! 
YTDLnis lets you download audio/video files from more than 1000 websites, and offers a lot of features.