Given that you're the sole backend developer with a focused vision for the app, the Server-Informed UI approach described in the article could work well for you. It simplifies the backend architecture and makes it easier to coordinate with your frontend team.

However, for long-term scalability, you might run into issues with this approach. If so, take a look at "Bounded Contexts," a technique in Domain-Driven Design that helps break down your application into manageable, scalable units.