Koen worked on improving security and dependency reliability for the framer/plugins repository, focusing on mitigating known vulnerabilities in the Node.js ecosystem. He addressed a critical security issue by removing the vulnerable form-data v4.0.0 package and upgrading to a secure version, directly responding to Dependabot alerts. His approach included updating the yarn.lock file to ensure all dependencies were locked to safe versions, supporting reproducible builds and reducing risk for plugin users. Koen’s work demonstrated proficiency in dependency management and security patching, with careful documentation and traceability through commit history, reflecting a focused and methodical approach to software maintenance.