During December 2025, Ortiz contributed to the sveltejs/kit repository by addressing a cross-platform issue with instrumentation file path handling. Ortiz implemented a solution in JavaScript and Node.js that standardized Windows file paths using posixification, ensuring consistent forward-slash formatting across Windows, Linux, and macOS environments. This fix reduced instrumentation failures related to file system discrepancies and improved tooling reliability for development teams. Ortiz also added a regression test to verify the solution’s effectiveness across operating systems and documented the changes through a changeset. The work demonstrated depth in file system manipulation and a methodical approach to cross-platform compatibility challenges.