During January 2025, K.T.W. focused on security hardening and dependency management for the shelfio/eslint-config repository. Addressing a cross-spawn vulnerability, K.T.W. updated the yarn.lock file to modernize dependencies such as chalk, debug, and lint-staged, ensuring improved security and stability without introducing breaking changes. Working primarily with JavaScript and npm, K.T.W. emphasized reproducible builds and maintained compatibility across the development environment. The work demonstrated a methodical approach to security remediation, with clear traceability through commit history. Although no new features were added, the depth of the update reflected strong skills in dependency management and security patching practices.