During their work on the Esri/harfbuzz repository, Luce Bac focused on stabilizing the build system by addressing version propagation issues. They implemented a targeted bug fix in harfbuzz-config.cmake.in and meson.build, ensuring the HarfBuzz version was explicitly set and consistently propagated throughout the build process. Using cmake and build system configuration skills, Luce’s patch improved build reproducibility and prevented version drift across continuous integration and downstream environments. Although the scope was limited to a single bug fix over one month, the work demonstrated a careful approach to maintaining reliability and consistency in complex build environments, addressing a nuanced technical challenge.