During March 2025, Olribre focused on enhancing the reliability of browser-based testing in the emscripten-core/emscripten repository. He addressed a critical runtime integration issue by adding the missing $addOnExit library function, enabling emrun_postjs.js to correctly retrieve browser output when EXIT_RUNTIME is set to zero. Working primarily with Python and leveraging skills in build systems and scripting, Olribre’s targeted patch eliminated a persistent runtime error in Emrun, improving the user experience for browser-based tooling. His work demonstrated careful debugging and a disciplined approach to patching, contributing depth in runtime stability and integration across C/C++ and browser environments.