What does the 'Deploy to Production' button in the Catalyst console do?

You can use the Development environment to work with and test your Catalyst application during the development phase, and deploy it to the Production environment once it is ready to be made live. When you create a project, it will be created in the Development environment by default.

Once you deploy it to the Production environment, you will be able to switch between both environments in the Catalyst console and migrate your data between both environments.

Refer to the Environments help page for detailed help.