Good question. I'm open to it, but this project is already not very successful (see my comments in an old thread here: https://news.ycombinator.com/item?id=35461596). I think I'm just a bit burnt out on it. Perhaps open-sourcing it will reinvigorate the project a bit. Ultimately I made it to scratch my own itch and I'm happy with what it is now, so at the very least I can use it for my own needs.

I would be happy to hear any advice for better payment processors, of course.