Plex doesn’t even work properly unless you set it up with network mode host, otherwise it always considers your service to be remote because they’re not on the same network as anything you try to watch it from. Jellyfin requires lots less access, and you’re so worried about it you can add a Tailscale mod to the container and isolate it completely so it’s only accessible via Tailscale similarly to what you think Plex is doing (which doesn’t harden security as much as you think)
You’re replying to a message that literally says that, so it makes you sound like you think Tailscale is somewhat integrated into Jellyfin, because the message originally said exactly that you needed a third party app to solve this issue in Jellyfin
How do I install it on my mom’s Chromecast or my sister’s LG TV?
You completely ignored his question, Tailscale is not a valid solution for your mom’s Roku
How would you have worded it differently? Since the email needs to be sent because the person is losing a feature (they might not use it because they only stream from you, but they might stream from someone else, so they should be made aware of it)
Erm… AFAIK Plex doesn’t work offline, so you are open to the internet. And BTW what Plex does is very similar to what Jellyfin+Tailscale would do
Your smart tv might not have VLC in it. That’s like saying “I don’t NEED financing, I can pay for my house all at once”, like, good for you, but you’re in a very privileged spot, and VLC is a beast so it’s really not fair to compare it with an embebed video player on a smart tv or something. You can disable transcoding btw, it’s enabled by default so that it’s more compatible, which makes absolute sense.
Unfortunately most smart TVs lack a Tailscale app, so it’s not always possible.
Then why are you using Jellyfin for?