I realized that I don't know a lot about ytdl/youtube-dl and went to have a look. As a result, I came across a potential show-stopper for inclusion in Emms in any form.
I was concerned when I saw that ytdl/youtube-dl has a javascript interpreter built-in. I found the following thread that reports that ytdl/youtube-dl downloads and runs non-free javascript automatically as part of accessing the sites it supports: https://trisquel.info/en/forum/do-youtube-dlhtml5-video-everywhere-run-nonfree-js The thread is from back in 2017. Is this still the case? If so, is there a libre version of ytdl? -- "Cut your own wood and it will warm you twice"
