Thanks for replying and congrats on releasing your idea to the world. I just signed up to check it out and will use it in parallel with my project. I like your idea of session-based versus photo-based and also the approach of pre-printing QR codes. That is a simple workflow quite accessible to the less technical on both sides.
I don't think I have specific questions now, but I'm excited for the kinds of interactions it can spark. I mostly imagine getting lost in a sea of QR codes if it is not managed well. I was going to try to composite an extra copy for photographer reference.
