Design Systems Handbook by DesignBetter.Co - Your guide to design systems best practices
UI Patterns - Level up with interactive mobile design patterns
The DesignOps Handbook by InVision - Guide to understanding how DesignOps help design teams scale
UX Archive Animated - iOS apps animated user flows
Design Principles - An open source repository of design principles and methods
Mobile Chat Kit - UI kits & sample apps for building in-app mobile chat