About https://codeberg.org/ArtisanByteCrafter/pytube-gui/issues/7 Would it be ok if i try the playlist integration or do you want to do your things first?

Works pretty good but basic error handling is missing. I made a issue and a PR for it already. My first try at streamlit.

Same thought here, why uploading it to proton drive? github isnt evil that they trying to snatch that code or whatever. If you are so cautious then ramp up a gitea or gitlab self hosted instance up.

couch co-op is something a game has to implement, not the console. You could do that over with a dedicated pc where all the steam decks remote steam play on it and boom you have 4 remote controllers ( Untested because i dont have so many friends with steamdeck )