In addition to being a 'local' music server attached to my office USB DAC and amp, the 2012 Mac Mini also serves as a Roon Core and "NAS" for streaming music to my Sonore microRendu network streamer in the basement, DIY Raspberry Pi streamer in the garage, and a couple AppleTV streamers in the bedrooms. All controlled via the Roon App on my iPad touch screen remote. My music library consists of lossless CD rips, 'hi-res' downloads, and Tidal streaming.
Very nice looking office with beautiful hardwood floors, and free of clutter.
Looks like a pretty amazing sound system incorperating new technology. I wish I understood it better so I could step out from the dark ages of elementary audio and embrace modern technology's potential like you have. I'm impressed!