Xcode is the application development program made by Apple, available free in the App Store. It's used to make apps for iOS, OS X, Apple TV, and Apple Watch, in Swift or Objective-C, and can be used for C and C++ development as well. It is a powerful, intuitive piece of software… if you can see it. Voiceover users have a harder time of things in some ways.
This is an updated and refined version of this guide, now that I've learned a little more, and stopped being so confused.
So we all know about the keyboard commander, and how you can make it read the time when you press option + t, but I personally find that method really really slow. In addition, for me at least, the date doesn't even read some times. So I set to making my own solution.
So, if you've got VoiceOver controllable by Applescript (in the General tab), you can make it say stuff etc.
So, you're a developer of Apple software. You've followed Apple's guidelines for making your iOS app accessible , or making your OSX app accessible to Voiceover users.