Which tool or platform is commonly used by the Flutter community for collaborative coding and contributing to open source projects?

GitHub is a widely adopted platform by the Flutter community for collaborative coding and contributing to open source projects. It provides version control through Git, issue tracking, pull requests, and various collaboration features. Developers use GitHub to fork repositories, make changes, and submit pull requests to contribute code enhancements or bug fixes to Flutter and other open source projects. Familiarity with GitHub is essential for participating in the collaborative development process.