> Do I need to atomically update the logic of all the instances of the application to modify both maps instead of just one? Or do I keep the second map (the hai

> Do I need to atomically update the logic of all the instances of the application to modify both maps instead of just one? Or do I keep the second map (the hair color index) in a separate index database and update the index whenever I pull changes from a remote database? (What does the API look like for getting notified of new changes that haven't been indexed yet?) Currently, you have to manually keep an index up to date. But keep in mind that internally this is what all databases are doing -- manually reflecting changes into indexes -- they just hide it from you. Eventually, we imagine that there will be tools to declare indexes you want to maintain and we'd do it for you. Note that because Noms is good at diffing, calculating the changes that need to be re-indexed comes for free!