SOLVED: Jellyfin and reverse proxy

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I have in the past set up a reverse proxy on windows for jellyfin. By far the easiest solution is to use caddy and a ddns service like duckdns.

Jellyfin docs on caddy
https://jellyfin.org/docs/general/networking/caddy/

Caddy server for windows
https://caddyserver.com/api/download?os=...5382046895

Duckdns app for windows I used
https://github.com/XWolfOverride/DuckDNS...DuckDNS.7z

Get subdomain on duckdns, create caddyfile and reverse proxy your subdomaine to jellyfin ip:port, and put your duckdns token/url in the updater app in case you isp changes your ip. Bingo bango