I'm a small-time app developer; I'm not likely to get access to the Developer Transition Kit. Despite that, I'd like to be able to test my macOS app on my existing Intel Mac, to make sure my apps will continue to work on Apple Silicon. Is it possible to do a test my Apple Silicon compatibility today on my Intel Mac? (I'm imagining something like running macOS Big Sur in a VM. It might perform slowly, but at least it would give me peace of mind to know that my app will work.)