Yeah sorry, I feel you. Things like these make me really cynical.

Sorry, your survival is incompatible with this version of Android.

I use Caddy for all kind of things and it has a very simple file browser built in that can be activated super easily: https://caddyserver.com/docs/quick-starts/static-files

Looks like shown here: https://peterpf.dev/posts/caddy-simple-fileserver/

Its very easy to deploy fail2ban for Jellyfin: https://jellyfin.org/docs/general/post-install/networking/advanced/fail2ban/