How to get to Flight builds on Xbox One

How do I get flight builds on my Xbox or what app am I supposed to use to get to them?

Flighting hasn’t started yet for either Xbox or PC. As long as you are signed up to the Insider program you’ll get notified if and when you are selected for a flight, you will also be emailed with instructions on how to download the builds. Keep an eye out on the pinned threads in the Insider forum, the News section of Waypoint and Halo’s social channels (like Twitter) for more info. You can sign up for the Insider program here:

https://www.halowaypoint.com/en-us/community/halo-insider