You can find here the iOS app and the Vapor server used in the CocoaHeads Meetup: https://www.meetup.com/CocoaHeadsBucharest/events/272351898/.
- Human Interface Guidelines for Widgets - https://developer.apple.com/design/human-interface-guidelines/ios/system-capabilities/widgets
- WidgetKit Framework - https://developer.apple.com/documentation/widgetkit
- Article Creating a Widget Extension - https://developer.apple.com/documentation/widgetkit/creating-a-widget-extension
- Article Keeping a Widget Up To Date - https://developer.apple.com/documentation/widgetkit/keeping-a-widget-up-to-date
- Article Making a Configurable Widget - https://developer.apple.com/documentation/widgetkit/making-a-configurable-widget
- SwiftRocks Article How to create Widgets in iOS 14 in Swift - https://swiftrocks.com/ios-14-widget-tutorial-mini-apps
- Article from zonneveld.dev iOS 14: Create a widget using WidgetKit - https://zonneveld.dev/ios-14-widgetkit/
- Tutorial, raywenderlich, Getting Started With Widgets - https://www.raywenderlich.com/11303363-getting-started-with-widgets
- Design great widgets - https://developer.apple.com/videos/play/wwdc2020/10103/
- Build SwiftUI views for widgets - https://developer.apple.com/videos/play/wwdc2020/10033/
- Add configuration and intelligence to your widgets - https://developer.apple.com/videos/play/wwdc2020/10194/
- Kilo Loco, Creating Your First SwiftUI Widget | iOS 14 - https://www.youtube.com/watch?v=wOrkcdeui4U