freenas-iocage-plex VS jellyfin-server-freebsd

I've just set up a Plex jail with danb35's script as had been recommended here. Everything seems to work well, except that it said it couldn't set up hardware transcoding for TrueNAS 13 and that I would have to do it manually?

I'd say you're probably thinking of this script. Also see this page if you want to set it up manually or add it to an existing jail.

if you want to 'learn by doing' and see something working right off the bat, I'd suggest learning the ropes by installing the plex plugin and emby https://emby.media/truenas-server.html - as well as installing plex via the danb35 script https://github.com/danb35/freenas-iocage-plex .

As of right now I have TrueNAS Core set up on my spare machine with danb's Plex jail script, aside from my own dumbass permission problems it works well. Best part is you can very easily split the Plex meta data from the jail so if you need to destroy and recreate the jail for whatever reason you don't have to download all the file info again.

On the server side, I'd actually recommend TrueNAS Core in a ZFS RAID-z2 to allow for two drive failures. https://github.com/Thefrank/jellyfin-server-freebsd/blob/main/Installation_TrueNAS_GUI.md

Look at the troubleshooting section of this guide for the plugin, it might be helpful.

I used the "Advanced" section of this guide.

I can't speak with first hand experience on the TrueNAS Core issue. But it took me 10 seconds and the first Google result to find this: https://github.com/Thefrank/jellyfin-server-freebsd

1) https://github.com/Thefrank/jellyfin-server-freebsd