Discourse: Changing root email address - on imported Discourse

[andxclfor]

I have imported an old/existing Discourse from another server and now want to change the root email address following this: https://docs.cloudron.io/apps/discourse/

I have change the "find_by_username" to actual admin user name of my install (not "root") > and in CLI that user seems to be found.

But, which email address should I now enter and the new email? The doc says:

irb(main):002:0> u.email = "YOUR_NEW_EMAIL_ADDRESS"

Should this be a specific one? The one from Cloudron-Discourse-email-settings? The Cloudron root/admin email address?

Thank you.