Developed GN Language Server Support for Build Configuration within the mason-registry repository, focusing on enhancing developer productivity and build correctness for GN-based projects. The work centered on implementing real-time validation, code completion, and navigation for GN build files, leveraging the Language Server Protocol and IDE tooling patterns. Using YAML and full stack development skills, the solution integrated seamlessly with existing workflows, enabling faster project configuration and more maintainable build systems. The approach emphasized code quality and collaboration, delivering review-ready commits without introducing major bugs. This feature strengthened IDE integration and contributed to more efficient release cycles across the mason-registry ecosystem.