hda-create-db-and-user '''dbname'''
which creates a database called '''dbname''' and a corresponding user name for it matching (the password is also the DB and user name). Run hda-create-db-and-user -h for help on customizing the username and password as well as dropping the db and user.
Once the htmp/php/python/perl/ruby files are installed, the app should be ready to go at the url for it!