Thanks to Eric Kidd, I've got Fargo Publisher working on Heroku.
If you want to give it a try, this is what you can do:
Choose Settings from the System menu.
Click on the CMS panel.
In the Server field, enter: fargopublisher.herokuapp.com
Here's a screen shot.
You should be able to edit named outlines, give names to outlines.
Verify that the changes make it to your beta.fargo.io site.