As simplified as it can possibly be, this installation feeds a basic traditional home audio system.  It uses a ‘wall wart’ a/c adapter, Pi3, our DAC+Pro board, and a case.  Content is a collection of FLAC files on a Qnap NAS streamed over ethernet, but could just as easily be a USB drive or external hard drive.  Because the Pi uses a removable MicroSD card, software running the DAC has been rotating between MoOde, Volumio2 and ROON.