So glad those guys are working perfectly together 🙂 Let me translate it for you: embedded canvas apps for UUI work with USD accelerator and USD desktop app OOB.
The address validation embedded canvas app within USD accelerator (screenshot below).
If you want to learn more about USD accelerator, it’s here, in the Neil Parkhurst blog.
If you want to learn how to build the address validation canvas app, it’s here, in Ravi’s blog.