The landing page looks nice and you could have something here, but you're going to need to do a better job on the marketing.
The alternative to your product is using something like Gumroad (https://gumroad.com/) or building against the Stripe API directly, which is well-known for being gloriously simple. Your job is to show developers that using your micro-framework is significantly better than doing a simple integration of the Stripe gem into a framework they already use.
My advice would be to show all of the screens that Moola autogenerates to really demonstrate the added value you're providing. Better yet, create a screencast going from download to deploy in 60 seconds.
From a technical perspective, I'd also recommend using a YAML file to store the configuration settings in one place, making the process even easier. Good luck.