I've set up "Tube Archivist" and don't regret it whatsoever. Automatically scans my playlists or channels I add at the times I set the cron to. It's still somewhat in early development and the cookie-parsing doesn't work half the time for me sadly, tho I seem to be one of just a few cases who have this issue.

It's a game-changer when it comes to archiving :) It even saves subtitles, comments and SponsorBlock timestamps.