Let us be grateful to the people and projects that are or were a part of Sketch, or those who had contributed to it in some way.
Library for implementing boolean operations on vector graphics.
Library for path simplification and boolean operations on polygons.
Sparkle is an easy-to-use software update framework for macOS applications.
JavaScript + the Cocoa frameworks, and then ObjC brackets show up to party as well.
An Objective-C Zip framework for macOS and iOS.
A delightful networking framework for iOS, macOS, watchOS, and tvOS.
A Cocoa / Objective-C wrapper around SQLite.
The official Mac SDK for the HockeyApp service.
Lightweight GCD based HTTP server for macOS & iOS (includes web based uploader & WebDAV server).
Objective-C websocket library for building things that work in realtime on iOS and macOS.
iOS and Mac Cocoa library for communicating over USB.
iOS and Mac Cocoa library for manipulating ZIP files.