I have a simple system: a relatively old Devialet Expert 120 that feeds my ATC SCM19s (v1). The Mac Mini depicted in the rack has now been replaced with a new MacBook Air M5 running Serento. The library, managed via MinimServer, is on a 2 TB Samsung T5 SSD. Serento plays via UPnP to a Raspberry Pi 4B running the new Verox system (formerly known as Ropieee) and is controlled either via my iPhone 16, or directly via my MacBook running the Serento app. Excellent sound, happy with the Serento app.