I had shairport-sync functioning with a hifiberry amp2 butwhic the room it was intended for causes the setup to need some eq in a bad way. I followed instructions I found at GitHub, but now I get no audio at all, and because I have no idea what I'm doing, I don't even know how to go back to how I started.
I think I can undo everything, but this command:
sudo cp -r /etc/skel /home/shairport-sync && sudo chown shairport-sync:shairport-sync /home/shairport-sync
This appears to have made a directory "shairport-sync" to the home directory, but other than that I am lost.