Ok now I understand. I installed LinuxServer.io Addon on Libreelec. Into this Addon I install the services Plex.
So now I have: Plex (LinuxServer.io), Docker and Docker image Updater AddOn.
Now Plex Client work with LibreElec PMS...and URL: http://<iprasp>:32400/web work.
Plex-update.sh and plex.service files where I must save them and used them?
Thank you
It's one or the other. What escalade is referring to is a whole another method of installing Plex.
If you already set up the docker addon and Plex is working, you don't need to do anything else. It will automatically update when you reboot your box.