Tell about architectural approaches: FSD, modular monolith. Which architecture to choose for a small MVP?

FSD (Feature-Sliced Design) — is an architectural approach to organizing frontend code, where the project is divided into features (functional slices), each containing all necessary layers (UI, logic, API, etc.). This helps isolate functionality and facilitates scaling.

Modular Monolith — is an architecture where the application is divided into modules with clearly defined boundaries, but all modules are in a single codebase and deployed together. This simplifies development and deployment, reducing the complexity of distributed systems.

For a small MVP, it is better to choose a modular monolith or a simplified FSD, because:

• Fast development without unnecessary complexity
• Easier to maintain and modify
• Less overhead on infrastructure

Example: you can organize the project by features (FSD), but without complex layers and with minimal abstraction, to quickly get a working product.