It allows you to post apps on a subdomain. Like, shortsegments.ipfs.dlux.io which means all your apps can share local storage and cookies. It's not too hard to have the app trigger a 3rd party payment like paypal check-out using URL params. The app being serverless makes some web paradigms a little harder... you have to build with react static instead of react. But there isn't a lot you can't do.