I'm procrastinating on a video game engine. Some time ago I realized that what many game console manufacturers do is incredibly stupid.
I want to be able to create a game and release the code under a GPL license, but the development kits for many game consoles are proprietary and require developers to sign a non disclosure agreement before they can use it.
If I accept people's contributions I can only add these to releases on open platforms.
Or I'd need to find some kind of workaround, like putting any code that interfaces with any game console API in a separate binary or library. It's easier just not to release a game on consoles at this point.