Nice.. I use ytdl-sub for downloading music, highly recommend it. You can write tag metadata but if you want embedded stuff I'd recommend trying beets. Running both as a user whose primary group matches Jellyfin is a must if you want stuff saved next to the video files.. The dev is also very active.
I just installed Ollama and use gemma3 for now. I wanted to use dolphin-mixtral but holy crap it wants more RAM than my entire setup