What’s your go too (secure) method for casting over the internet with a Jellyfin server.
I’m wondering what to use and I’m pretty beginner at this
you're not particularly worried about "someone", you're worried about bots that are scanning IP ranges and especially default ports. A lot of people will install a program, not really understand what it does, and forward a port because the setup told them to. Then proceed to never update the program (or it's a poorly secured program in the first place).