Unicorn pHat on headless Pi0 (tea-time teaser)

I don't think the order matters. But the 'get' installer does things a bit differently, part in the /boot/config.txt and part configuring the alsa mixer.

This means that if you want the analog audio back you won't need to touch up the /boot/config.txt file, just use the lxpanel sound widget, or run:

 curl -sS get.pimoroni.com/audio | bash

basically choose HDMI option when you want to use the unicorn, analog if you want to route audio to speakers.