RV NAS Plex or JF

[JDM_WAAAT]

Have you read my guide on this?

[Guide] Create a mobile media server setup with Plex's new app

Disclaimer: This is not an intended use of the Plex App’s “Download” feature. There is nothing in this guide that is against TOS/EULA, but Plex may decide to take this capability away at any time. Note to Plex: Please don’t take this away from us. It’s really cool. Overview Despite the fact that I outright detest Plex’s overall direction with the PC (removing TV mode and killing HTPC support), they’ve added a neat feature. Using the new Plex app, you can now download to your PC. In this guide…

It’s a bit old, but it should provide some good guidance overall.