A. 1. Use an external IDE: Download and install an IDE like Visual Studio Code or Android Studio, which allows you to write and test your own Dart and Flutter code. 2. Utilize online coding environments: Websites like DartPad (https://dartpad.dev/) allow you to write and test Dart code directly in your browser without needing to install anything. 3. Create a local development environment: Set up Flutter on your local machine to create and test your own projects. Follow the official Flutter installation guide for step-by-step instructions.