I am a retired Application Specialist for a supercomputer company. I spent a lot of my work time getting large applications to run as efficiently as possible using hundreds or thousands of processors (including GPUs), while doing terabytes of I/O and effectively using various high speed networks.
Now I am learning SwiftUI, primarily to write scientific programs for macOS, but currently doing iOS on raywenderlich.com as it’s the best I’ve found for a Swift, SwiftUI newcomer like me.
I am hoping BigSur and Xcode 12 make the macOS experience with SwiftUI a bit more complete.