Setting up a Mac mini as a music server, and other digital music questions

Hi All,

I'm sure this topic has been covered a bazillion times before, but thought I'd ask the Audiogon community as I don't see much up-to-date info on the web. I just purchased a DAC (Ares II) and my old Macbook Air that has been serving as my music server won't run the latest Mac OS, so probably time for a replacement. I'd like to set up a computer to store my music files on SSD, and probably handle some high-res streaming down the line. I'm currently subscribed to Apple Music, and seems hard to get out of the Apple ecosystem.

What does everyone recommend to get the best sound? Mac Mini + some kind of music software/service into the DAC?

Thanks for your help!
Josh