Do yourself a favor and check out Lyrion. Use piCorePlayer to install Lyrion (the server) and Squeezelite (the player).

FOSS, actively maintained, and a much better experience IMO. Tried it back when I was an active Volumio user back in 2020, fell in love instantly, and have never looked back

Mom, you just don’t get it! You don’t need a remote to look for the movies! You just gotta ssh into the streamer and run a MPV command! Stop calling every night saying you can’t find Happy Gilmore!

This may be overkill, but consider a used Squeezebox Radio and setting up Lyrion Music Server on your network. It uses your music library, along with optional web radio and streaming services. You can control any device from any computer in your network. The SB Radio has a great sound, even 15 years later. It has physical buttons so your kids can choose music without phone/computer. You can get a used Radio for like $30-$40 on eBay, and Lyrion is free and open source