[sagebird]

IO Monads solve this by passing the world around.

Yeah, the best world for multiple users is a database right?

So it would seem that if apps have stores to buy things one of those things should be a store?

If you could buy a database place then you can dispense tickets. Share the tickets with friends as photos. Then your local - first app can store take the tickets to the places your friends shared with you. Some of them go offline, fine.

I don't like the experience of having to setup a dropbox externally from apps. Why should a database place not be a one-off purchase like an item in a game?