.l-main-section h2 Angular Projects p We'd love for you to contribute to our source code and to make Angular projects even better. .l-sub-section h3 Angular 2 p Angular 2, now in beta, is a next generation mobile and desktop application development platform. a(href="https://github.com/angular/angular/blob/master/CONTRIBUTING.md" class="button" md-button) Contribute to Angular 2 .l-sub-section h3 Angular for JavaScript or Dart p Angular is a development platform for building mobile and desktop applications. a(href="https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md" class="button" md-button) Contribute to Angular for JS a(href="https://github.com/angular/angular.dart/blob/master/CONTRIBUTING.md" class="button" md-button) Contribute to Angular for DART .l-sub-section h3 Angular Material p Our goal is to deliver a lean, lightweight set of Angular-based UI elements that implement the material design specification for use in Angular single-page applications (SPAs). a(href="https://github.com/angular/material/blob/master/.github/CONTRIBUTING.md" class="button" md-button) Contribute to Angular Material .l-sub-section h3 AngularFire p AngularFire is the officially supported Angular binding for Firebase. Firebase is a full backend so you don't need servers to build your Angular app. a(href="https://github.com/firebase/angularFire" class="button" md-button) Contribute to AngularFire