Hello there and thanks for an excellent effort!
I’m currently using the Volumio with the HifiBerry DAC mostly for AirPlay but also with a small USB dongle for local files.
A setup tip for getting the less technically inclined to have a setup running ASAP would be to integrate the installer from Google Coder to the project?
The installer is for OS X only though, but provides a nice GUI for flashing the SD card and installing the img.
github.com/googlecreativelab/co … /installer
googlecreativelab.github.io/coder/
Cheers,
Wille