124
Plex; Introducing Plex Photos Beta
(www.plex.tv)
This is a most excellent place for technology news and articles.
The official documentation has some guides on setting it up in a few different ways, although they assume the user is decently familiar with Linux/terminal commands and such. There might be some more beginner-friendly guides out there, though.
https://jellyfin.org/docs/general/installation/container/
I switched from Plex to Jellyfin a while back and I've been very happy with it.