It's a very interesting idea. You've given me food for thought. Maybe the payment model becomes purchasing access to the frontend, instead. But then you're back to square one with traditional infrastructure to accomplish the gating. It could be lighter weight though.

I'm curious about the encryption side as well. Still reading through your docs.

I'm also a little skeptical on the claim of it making things simpler. It kind of feels like it just moves the responsibility. Instead of developing infrastructure/backend and communication with it, you instead have to accomplish most of that on the frontend instead? Maybe it does simplify things in the end but my intuition is telling me that you'll end up with an equal amount of different types of complexity.