The key thing here is that the Swift compiler is computing gradients using SCT techniques, not TensorFlow. This has a number of advantages that we'll go into i

The key thing here is that the Swift compiler is computing gradients using SCT techniques, not TensorFlow. This has a number of advantages that we'll go into in the white paper we are going to publish in April, so I'd prefer to wait until that spells it all out rather than go into detail here. All this works no matter how you choose to build your code: Xcode, Bazel, SwiftPM, makefiles, whatever. Also, since ML scripts are frequently small, a simple #! script like we showed in the demo is perfectly reasonable for many things. -Chris