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It's exciting to watch swift continue to evolve. Looks like property wrappers are used extensively throughout SwiftUI for @State and @Binding. This talk on "Data Flow Through SwiftUI"[0] is a really great one as well and they touch more on property wrappers.

[0] https://developer.apple.com/videos/play/wwdc2019/226/

And https://developer.apple.com/videos/ for all the rest, I guess.
Swift makes me feel jealous. What a cool language.