AFAIK this isn't really true. Microsoft made the GDK public, but only for targeting Windows 10/11. The portion for targeting the Xbox is still under NDA. You ca

AFAIK this isn't really true. Microsoft made the GDK public, but only for targeting Windows 10/11. The portion for targeting the Xbox is still under NDA. You can get access to developer mode for your Xbox by signing a few things online and paying a nominal fee, but that level of access only lets you deploy UWP apps to your Xbox, not do native development.