During December 2024, Benjamin Nordemann enhanced the salesforce/rules_spring repository by developing advanced parameterization for the Spring Boot Bazel rule. He introduced the restricted_to and target_compatible_with parameters, which are propagated to subrules to provide granular control over build compatibility and restrictions. Using Starlark and leveraging his expertise in Bazel and build system configuration, Benjamin’s work improved the flexibility and reliability of building Spring Boot applications with Bazel. This feature-focused contribution addressed compatibility management and reduced misconfigurations, resulting in smoother upgrade paths. The work demonstrated a focused, in-depth approach to rule expressiveness and maintainability within the Bazel ecosystem.