Something I really want someone to build (if you're interested let me know) is a true personal relationship manager with support for all conversations on all platforms.<p>Email, sms, WhatsApp, discord, messenger, some obscure website chat platform whathaveyou...<p>The ability to cross link profiles and truly manage contact lists across all those platforms as a single object. So Emma on Discord is the same contact in the app as Emma on Messenger, and on SMS, etc.<p>All this can easily be stored in Google contacts as metadata and would allow the user to backup and index their chat conversations, and quickly search through previous messages across all platforms. And backup all photos and files sent through those platforms as a single stream.