PSA - Sonos app alternative: Lyrion Music Server

https://lyrion.org/

The server used be called Logitech Media Server (for Logitech Squeezebox devices). It’s now community maintained and works great. It does need to be running on a PC, NAS, or Raspberry Pi.

It offers many audio source options including local music, internet radio, and connections to paid services, and with a plugin can stream to Sonos. Very customizable and free.

You can use the plugin called Material Skin and add it as a shortcut to iOS and Android devices to use as an Sonos Controller alternative. I’ve included a screenshot of what the interface looks like on my IPad.