Just a little FYI for anyone wanting to download a playlist to listen to offline. Use yt-dlp. Load up the playlist, copy the URL, and then just run

yt-dlp --extract-audio --audio-format mp3 --audio-quality 0 https://www.youtube.com/playlist?list<the playlist>

There really isn’t any “hosting” with Syncthing. Everyone sharing the folder is kind of hosting.

It’s also great for sharing files with friends/family. I gave a couple of friends a folder address, and we all just drop shit in there that we want the others to see.