To visit the app in your browser you can use a username of admin and a password of admin.
Please, please, please do not accidentally leak your environment variables in your .env file on your Github / GitLab / elsewhere.
99.99% of the time you should use .gitignore to exclude your .env file from your repository.
I only included it in this example because it's super common for people following lessons to include a typo in the variable name for environment variables, and then never be able to figure out why there example is not working.