Open Source Project - Restaurant Order Management App

I'd like help to make my project Open Source. It's called Orderupp and its a restaurant ordering system for restaurants. You can see the promo site at orderupp.com. It's written in angular and bootstap with a firebase backend. I have it running in a restaurant and can no longer maintain it. Right now I have it in private repository on GitHub. I would like open it up and try to build a community around the software, but I dont really know where to start. It is functional now at basic functions, but needs to abstracted out and feature set needs additions. The idea is that any startup restaurant/foodtruck would have a free, comprehensive technology solution to run their business. http://orderupp.com demo at: http://tonto.firebaseapp.com un: tonto@orderupp.com pw: tonto