There are 3 repositories under swift-template topic.
Xcode Guide.
Swift storyboard-less well structured iOS app template
iOS template app to show best practices for mobile security
A template for new Swift iOS / macOS / tvOS / watchOS Framework project
Swift Library Template, just run ./generate.sh
The gyb.py plugin for SwiftPM project.
Swift Executable Template, just run ./generate.sh
Swift MVVM Template Project
Boiler plate for a swift application in Swift4.x