Pirate Audio Headphone Amp Help

I’m really frustrated as well. I was able to install the software, but am not sure where to go from there? I would like to use Spotify on the device, but not sure what to do? I found an install file that I was able to edit and add my Spotify username, password, client id, and secret number, but nothing happens when I reboot the pi. Could you list the directions on how to add Spotify once the automatic install is finished? Additional steps would be greatly appreciated. Also, I’m not sure how Mopidy on the web interacts with the amp? Do I go to Modipy.com to stream? Thanks.