Rasmus Norskov contributed module compatibility improvements to the grafana/k6-DefinitelyTyped repository, focusing on enhancing TypeScript type definitions for CommonJS environments. He updated the ioredis-mock typings to use the export = syntax, enabling seamless integration with legacy Node.js projects and aligning the module with current usage patterns. By removing ioredis-mock from attw.json, he simplified the dependency graph and reduced ongoing maintenance requirements. His work demonstrated a strong grasp of TypeScript, module resolution, and dependency management. The changes expanded the adoption potential of the repository’s typings, addressing compatibility challenges while maintaining a clean and efficient codebase for future development.