This, the mirroring part, also happens in an Arthur C. Clarke short story: https://en.wikipedia.org/wiki/Technical_Error
lub dub
We need jungle, I’m afraid.
jdupes is my go-to solution for file deduplication. It should be able to remove duplicate files. I don’t know how much control it gives you over which duplicate to remove though.
Your playlists are missing all of Noah Caldwell-Gervais’ video’s.
Are you professor Nakayama?
Crystal, played by Betty Gilpin in the movie The Hunt (2020)
You’ll want to look into a category of programs called dotfiles managers. There’s a bunch of them. Most of them are based on some kind of version control system, usually git.
I personally use yadm
Kittens Game.