* [ServeRest v3.2.2](https://github.com/ServeRest/ServeRest) – REST API simulating an online store for learning manual and automated API testing. * [NestHttpProblemDetails v1.9.0](https://github.com/Fcmam5/nest-problem-details) – NestJS HTTP exceptions filter that returns RFC 9457-compliant Problem Details JSON with application/problem+json, including optional Retry-After and Swagger support.