You can use both Navidrome (Music) or Jellyfin (movies) simply by bookmarking them via this website and logging in with your provided credentials. If you want easy access to all these things from a nicely packaged app, there are many apps that allow you link to Navidrome or Jellyfin so that you can stream music/moveis/shows without having to open your browser. Just like any other music streaming app. Some example apps are below.
For music on android:
Symphonium (I use this, but it costs $6 as a one-time payment)
Ultrasonic
Substreamer
For music on iOS:
Amperfy (Supports CarPlay)
Substreamer
flo
For more music clients including desktop and web, visit here.
For movies and shows:
Simply go to videos.LibraryPeter.com. If you want a slightly more polished experience, you can download the Jellyfin app for Android or iOS and login.
Logging in to any of these
Once you open one of the above apps, the process for setting up any of them is the same. You just need to enter the following information:
Music apps
Server/media provider: https://music.librarypeter.com
Your Navidrome username: ***
Your Navidrome password: ***
Jellyfin app
Server/media provider: https://videos.librarypeter.com
Your Jellyfin username: ***
Your Jellyfin password: ***
If you have forgotten your login info, please contact your LibraryPeter administrator.