Hi meredydd! Thanks for your interest and yes, you got the reference to HyperCard ;)<p>1. Checkout the sample app <a href="https:&#x2F;&#x2F;hyperdev.com&#x2F;#!&#x2F;project&#x2F;bramble-leaf" rel="nofollow">https:&#x2F;&#x2F;hyperdev.com&#x2F;#!&#x2F;project&#x2F;bramble-leaf</a> for an integrated object datastore backed by DynamoDB, that works quite well! I myself built some nice stuff with it :)<p>2. We use a smart backend system to control user access, quota and sandboxing. For now we rely on honor system during the beta. We have systems in place to block abuse but... hopefully they won&#x27;t be necessary :)