I've just installed berryaudio on a Pi3 to see what it can do. I'm favorably impressed!
The Airplay, however, is behaving strangely. My IOS 18 phone thinks it is playing through the berryaudio 'speaker', and the blips in the DSP make it look like it is playing audio, but no sound is being played. I've tried disabling my DAC and using the on-board headphone jack with the same results.
What am I missing for Airplay?