How Do I Redirect My Ember Application Based on ViewPort

I've searched around for this and I don't see anything that quite explains what I'm trying to do.

GOAL:
Our company is building a mobile app alongside our desktop app. The CTO prefers two separate apps rather than one responsive app. The goal is to have the application navigate to either the mobile app or the desktop app based on the viewport. I can think of a two different options

1. Use the same login screen and redirect on login completion
2. Redirect once the baseURL is hit
   config/environment.js?

TOOLS:
Using the latest stable ember-cli to date 2.6.3

Thanks!