I have followed this really helpful tutorial:

<http://blog.willj.net/2011/05/31/setting-up-postgresql-for-ruby-on-rails-development-on-os-x/>

I would really like to run `rails new myapp` and have the postgres db set up automatically. Is there any way I can do that using a [Rails application template](http://edgeguides.rubyonrails.org/rails_application_templates.html) or something similar?