I had never heard of this before. Installed it in Termux on Android. Some dependencies were missing, but after installing them along the way, it worked in the end! What a cool little tool. Streaming seemed to be working well. However, when I tried using the download features, the speeds seemed to stall. It took maybe 30 min to download 8 mins of video (a few 100 MB, ~25% of the size of the files I tried). I force killed the processes, which left temp incomplete files. I found and removed them using these commands:

ls

to list the files in the termux dir,

followed by:

rm filename.mp4

to remove the file

...after which the size of my Termux app decreased, as expected.