All I wanted is to install the current yt-dlp (2024.07.16-1) on debian 12.6.
Suggested way to that according to https://packages.debian.org/sid/all/yt-dlp/download is to add that line to that file (etc/apt/sources.list), but do I really need to download the 1600 files that upgrade would entail?
I don’t want to download the tar.gz 'cause upgrading that would be a pain.
You’re adding the full repository of Debian unstable to your system. This wouldn’t just enable you to install yt-dlp but it would also turn your whole system from Debian stable to Debian unstable on the next update. Total overkill for one package.