After revealing details on Project Ara’s Spiral 2 and Spiral 3 prototypes as well as its test program, Google today shed some light on the way that consumers will build their own Ara phones.

The Ara Configurator app was shown off at the Project Ara developers conference today. The Material Design-ified app will let you view the outer shell of your Ara phone, the modules, and the “endo” skeleton of the device. You start at the market, where you can view modules and save ones that you’d like to add to your own device. You can also add your own photos that’ll be plastered onto your shells. And if you’re not feeling particularly creative, Google will have pre-built models available.

Once you do build your phone, you’re given the cost and specs like estimated battery life. If that all sounds good to you, then you can go right ahead and place your order.

This Ara Configurator app looks like a nice way to build your custom Project Ara smartphone. Navigation looks simple enough, and it’s good that you’ll be able to easily save modules from the market for adding to your phone once you get to the building process. Unfortunately, we still don’t know when we’ll actually get to build a phone, but at least we know that we’ll have nice app to do so.