This repository is the official Spring Boot getting started guide (gs-spring-boot). It provides a minimal web application that demonstrates Spring Boot's auto-configuration, embedded Tomcat, and actuator endpoints. The codebase consists of a single REST controller returning a static greeting string, a Spring Boot application class with a CommandLineRunner that lists all beans, and corresponding unit and integration tests. The complete variant includes Spring Boot Actuator for production-ready features. The repo serves purely as a tutorial scaffold, not a production-grade application. The architecture is a trivial monolith with no external services, database, or complex data flow. All source files are framework boilerplate generated or inspired by Spring Initializr. There are no reusable components or non-obvious patterns. The value lies in its documentation and as a starting point for learning Spring Boot. Despite its simplicity, the repository is actively maintained with up-to-date dependencies (Spring Boot 4.0.x, Kotlin 2.2.x, Gradle 9.3.x) and CI pipelines. It includes both Java and Kotlin implementations, and both Maven and Gradle build systems.