I have no idea how that works, but in order to become a universal payment system, it should definitely be easy to add new banks. I think it started out as an ag

I have no idea how that works, but in order to become a universal payment system, it should definitely be easy to add new banks. I think it started out as an agreement between the Dutch banks, but new banks have been added since then. The biggest problem to making it work for all banks is that at the moment, you need to select your bank from a list. That list is going to get enormous. The browser should probably remember your bank for you.