After years of watching React codebases blur the lines between UI and application logic, a developer created Snapstate - a class-based state manager that moves business logic out of components and into plain TypeScript classes. The tool addresses a common pain point: React's effectiveness for rendering versus its limitations when managing application state, data fetching, and business rules.

Existing solutions like Redux, Zustand, and MobX offer different approaches but come with tradeoffs. Redux introduces ceremony, Zustand remains hook-centric, and MobX uses implicit proxy tracking. Snapstate positions itself as a middle ground—using explicit class-based stores with clear boundaries. The architecture lets developers keep React focused on rendering while housing application logic in testable, reusable TypeScript classes that don't depend on React's lifecycle.

The approach yields practical benefits, especially in testing. When business logic lives in plain classes, developers can verify behavior without rendering infrastructure, providers, or waiting for UI state updates. This separation means components stay simple—receiving props and callbacks without understanding data origins or mutation processes. The result is cleaner code where each layer handles its responsibilities, making applications easier to maintain and reason about.