Before embarking on a fixed navigation, prepare your user interface (UI) and assets to provide the best end user experience.
Based on what I’ve been reading around the Interwebs, most people are expecting one or more of the following things from the new social network, Ello. 1. People will flock to Ello initially then disappear. 2. Once Ello gets big, they’ll find some way to exploit users. 3. Ello will get bought out by Facebook.