We'll be using Plex with TrueNAS, specifically the TrueNAS SCALE, but you can use pretty much any other solution to build your media server. Installing Plex with Synology NAS DiskStation Manager ...
I’m not going to cover all of my trials and tribulations building my first Plex server, nor the various ways you can set up your own — we have a guide on how to use Plex that goes into plenty ...