What other architectural approaches, besides microservices, are used in Nest.js?

In Nest.js, besides microservices architecture, the following architectural approaches are often used:

• Monolithic architecture — a classic approach where all components of the application are in one process and closely connected. Nest.js is initially oriented towards creating modular monolithic applications with a clear structure.

• Modular architecture — the application is divided into independent modules, each responsible for its own area. This makes maintenance and scaling easier.

• Event-driven architecture — interaction between components occurs through events and subscriptions, which increases asynchrony and loose coupling.

• Serverless architecture — Nest.js can be used in serverless environments (e.g., AWS Lambda), where functions are executed on events.

Thus, Nest.js is flexible and supports different architectural styles, not limited to microservices.