They say that the full API for this will be openly available in the fall. Am I correct in understanding that this means that I could make my own service to order things (for myself only) I'd like at the push of a button? Like could I set up my own button that buys something I like (regardless of whether the brand does anything with this? Or will only vendors be able to use this for their own products? (Maybe my scenario is already possible and I just don't know.)