Specify the environment in the config section of composer, allowing you to dev for a different environment.
Tips for when using composer on PHP projects that use Docker.
Learn to create templates that you can then install using the composer create-project command.
Demonstration of distributing JS code using Composer.
Learn how to include your package within itself for testing and not have to keep pushing the code and composer updating.
How you can use aliases for package names for testing dev branches.
Install composer on Ubuntu