This isn't about videos I guess. I had parties where guests where demanding songs (every DJs dream) that I obviously didn't had on my drive. That gives you three options currently:

1. Tell them to fuck off, which may or may not work in any given context

2. Play the music in the browser and then hop back to Mixxx in time (dangerous)

3. Downloading the song via 'yt-dlp -x --audio-format mp3 --audio-quality 0 <URL>', fixing the questionable metadata (optional) and then loading it into Mixxx (cumbersome)

It would be cool if you could just paste the URL into Mixxx, have it cache a local version, render the waveform, store it in a special temp crate or what and then you can play it. But I guess yt-dlp isn't the most stable dependency...

Also if there's a tiny network blip before buffering is complete everything goes to hell. I don't get streaming DJing in general, seems like something serious DJ software should avoid (unless they're targeting the casual party crowd, which is fine)

Works well for karaoke though for intermission songs.

The gold standard for that though seems to be VirtualDJ.