Meridian's documented Node.js deployment workflow creates each application on a new subdomain.
Before deployment, choose the subdomain carefully. cPanel states that the app's subdomain cannot be renamed after deployment.
cPanel also documents a limit of up to four Node.js apps per cPanel account in this Meridian workflow. If the account reaches the limit, an existing app must be deleted before another can be deployed.
Deleting an app does not delete its domain, but app deletion itself is irreversible. Plan subdomain names and application slots before deploying temporary experiments to a production account.