I’m at one last reaching the “release” of my first LED circle clock driven by a Raspberry Pi – and found this guide on how to get the FadeCandy server running on your Raspberry pi :

Fadecandy Server Setup | 1,500 NeoPixel LED Curtain with Raspberry Pi and Fadecandy | Adafruit Learning System: “Fadecandy Server Setup PHILLIP BURGESS At this point you should have gone through the network configuration steps from the prior page, and should have working internet access before continuing. There’s a little more software to be fetched… “