In large Redux Toolkit applications, it’s best to organize slices by feature or domain. Each slice manages a specific part of the state, making the codebase modular, scalable, and easier to maintain.
Create separate folders for each feature (e.g., features/user, features/posts).
Place slice files, thunks, and selectors related to a feature inside its own folder.
Combine all slice reducers in a central store.js or store/index.js using configureStore().
Use clear and consistent naming for slice files (e.g., userSlice.js, postSlice.js).