Migrating mediawiki from dreamhostapps to paid DH hosting

I’ve got a wiki already set up with dreamhostapps, and now that I’ve upraded to paid DH hosting, I’d like to migrate it into my new paid hosting account. What is the best course of action?

Write in to DreamHost Support with the addresses of your old site and of the new one, and we’ll bring the app over to your new account.