I hit an unexpected technical challenge: Heroku has limits on ImageMagick that make it difficult to do what I want to do.
On one hand, this is lame: I'd rather get this thing to market quickly.
On the other hand, this is cool: At least what I'm doing is sorta hard, right? It requires some competency to do correctly! And I will!
But enough about building, I need to think about selling more...