Swift - sgml/signature GitHub Wiki https://solarianprogrammer.com/2017/04/19/getting-started-swift-windows-subsystem-linux/ https://developerinsider.co/install-apple-swift-on-windows-10-subsystem-for-linux-wsl/ https://docs.swift.org/swift-book/documentation/the-swift-programming-language/automaticreferencecounting/