Christian worked on streamlining the C++ target configuration in the lf-lang/lingua-franca repository, focusing on build system configuration and target property management. He removed the unsupported export-to-yaml property and corrected the handling of export-dependency-graph, simplifying the configuration and reducing maintenance overhead. By dropping deprecated and unused features, Christian improved build stability and ensured better compatibility with downstream tools. His work, primarily using Java and Kotlin, aimed to make the build process more reliable and onboarding for new contributors easier. The changes addressed long-term sustainability and maintainability, reflecting a thoughtful approach to code refactoring and project health.