Fast Vue3 ServerA clear, type-aligned reference backend

Spring Boot 3, Java 21, PostgreSQL, and Redis behind one /api/v1 contract for every Fast Vue3 application

Modular monolith

Authentication, content, tenants, organizations, projects, tasks, approvals, and notifications are organized by business capability.

Spring and Nitro share routes and response types; the Java service owns durable business rules and tenant isolation.

Unit, MockMvc, and Testcontainers tests cover separate layers; run real HTTP checks for the deployed service.