Hi,
while according to public information the Xbox One uses a very similar development model based on Windows 8 and Windows 8.1 Universal Apps you right now can't deploy them to regular Xbox's. You would need an Xbox One Development Kit. Even if you have that
you can not sideload Apps to regular Xbox One consoles.
It's possible this will change with Windows 10 on Xbox One but right now you won't be able to bring your App from Windows 8 to the Xbox without a development Xbox.