⚙️ General environment variables
DOMAIN
Here you should set the custom domain of your app.
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Check out this guide to learn how to set up a custom domain for your project.
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I recommend to do this step as soon as possible, since transactional emails (including authentication emails) will not work properly without your own email-sending domain.
TRANSACTIONAL_MAIL_LOCAL_PART
This will be used as the from address for transactional emails. For example, if you set it to 'info' and your domain is 'example.com', the from address will be 'info@example.com'.
REGION
This is the AWS region where your app will be deployed. Simply choose the one that is closest to you and your users. You can find a list of all available regions in the top right corner of the AWS console (opens in a new tab).