Introduction The NestJS Vertical Slice Template is a practical backend boilerplate for building scalable, maintainable, and operations-ready NestJS APIs. It is not just a simple “hello world” NestJS starter. It combines real production engineering ideas: Vertical Slice Architecture, TypeORM, PostgreSQL, OpenTelemetry, Docker Compose, Swagger, API versioning, structured error handling, and different types of testing. The … Continue reading NestJS Vertical Slice Template: Real-World Backend Architecture Starter