Bots UI Kit - Fully customizable Sketch UI Kit for Messenger Platform
iOS Design Kit - The newest library of native iOS templates
Sketch Plugin Course by Design+Code - Enhance your design workflow by creating a Sketch plugin
Sketch Repo - Collection of resources for anyone who uses Sketch
Swiffy Slider - A super lightweight and fast slider and carousel, greatly reducing the javascript footprint and increase performance to meet todays standards.
SketchApp.rocks - Index of all awesome things related to Sketch.