I would love to see a sync solution that didn't want to replace my datastore, or mediate all access to it.<p>This approach means the tools have to be good at not just sync, but also querying, business logic, validation, authn, authz, trigger background jobs, etc. That's a lot!<p>I'm not trying to eliminate my backend, nor an all-in-one frontend DB. I've tried tools that do that, and I've come to think the approach has severe limits.<p>I wonder if there's not a way to offer a two-way stream of data change events, with conflict detection/resolution, which I can process with my own code.