In addition to the environment variables that you specify, your project's .env accepts the following:
- PORT
- The port your project uses, which defaults to port 3000.
- PROJECT_DOMAIN
- Contains your project’s name, useful for programmatically specifying your project’s URL.
- PROJECT_ID
- The ID of your project.
- PROJECT_INVITE_TOKEN
- Useful if you want to invite people to edit your project.