Contributed two documentation-driven features to the spring-projects/spring-boot repository, focusing on enhancing reliability and security through improved guidance rather than code changes. Addressed test stability by clarifying the lifecycle and cleanup of Testcontainers-managed static containers, helping developers avoid exceptions during testing. Improved operational security by documenting the process for automatic SSL certificate reloading with Let's Encrypt, enabling live updates of TLS bundles in Spring Boot applications without requiring restarts. The work leveraged skills in SSL configuration, Spring Boot, and the Spring Framework, with documentation authored in asciidoc to ensure clarity and maintainability for both testing and production environments.