They work great together. I have jellyfin as my media server / manager /backend, and kodi on my nvidia shield connected to my TV as my main media player / frontend. In kodi, the jellyfin plugin syncs all metadata from jellyfin to kodi’s library, and streams the media from my jellyfin.
Tell your friend to google stashapp.
I knew a guy who was a very outspoken but peaceful vegan, didn’t want to harm anything. Animal rights activist. Super nice guy, when sober.
But he also had a drinking problem, and totally flipped when he drank, you could almost see the switch happen in a few seconds when he was at 4-5 beers. His drunk personality was angry, paranoid, quarreling and violent, and he would often get blackout drunk and get into fights and whatnot. Got himself banned from several bars.
I didn’t know him well, but he probably had some trauma/bad shit in his life. He never talked about his family, except his grandmother who apparently had raised him, more or less.
I also had one who went crazy if he smelled olives in the house 😂