Guide AndroidTV user wouldn't connect remotely(or in lan) via reverse proxy hostname

[gaming09]

I couldn't get a NVidia shieldTV to connect via hostname in my reverse proxy via the official app(even though it worked via web browser) internally via split dns or externally from a hotspot
A thousand logs and a lot of googling I found this from git https://github.com/jellyfin/jellyfin-android/issues/742 (thank you Charliecoop)
Basically had to add a variable to the docker image with the local IP and all was well with the world

Code:

JELLYFIN_PublishedServerUrl=your local container IP