Every Xbox One is a dev kit out of the box, but see how fast they patch it out and make that a paid feature. Left Trigger, and Right Trigger in the System settings menu of your Xbox One.
How to stream Xbox One games on your Windows PC - The Verge Aug 24, 2019 You Can Access The Xbox One's Developer Tools Right Now That said, you can access the Developer settings by going into your Xbox One's system menu and pressing the left bumper, right bumper, left trigger, and right trigger in order. Then you should see
Settings: Xbox One | Plex Support
Mute the Startup Chime. By default, your Xbox will make a little chirp when you turn it on. This is …
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Aug 24, 2019 You Can Access The Xbox One's Developer Tools Right Now That said, you can access the Developer settings by going into your Xbox One's system menu and pressing the left bumper, right bumper, left trigger, and right trigger in order. Then you should see Help to navigate Xbox One menu without monitor | Xbox Talk