Recommendation for a simple to use upnp/dlna media server app

[skikirkwood]

I have a bunch of Raspberry Pis in my house running the PiCorePlayer Linux distribution. It includes the Logitech Media Server and Squeezelite audio player. I have one of the Pis as a dedicated LMS server and also share the music library on it (2000+ ripped CDs) to my network as a Samba mount.

[skikirkwood]

I also use the iOS iPeng app as a controller, along with the browser-based LMS interface using the Material UI skin plug-in. I added a touchscreen display to two of the Pis too. I used to use (and still have) a Logitech Squeezbox as a streamer. The LMS and its ecosystem were open-sourced before Logitech acquired the original company (Slimserver). So all of the software that ran on the Squeezebox (both server and UI/player) now run on all kinds of devices, including piCorePlayer.

[skikirkwood]

Another popular "audiophile" Linux distribution is Volumio. I rewrote the Spotify plugin for Volumio several years ago. I found piCorePlayer to be more stable than Volumio. But if you're not familiar with the Logitech Media Server, Volumio might have a shorter learning curve to install/use.