During October 2025, work focused on enhancing the CollaboraOnline/online repository by addressing two critical bugs that improved both build reliability and user interface consistency. Using C++ and CMake, conditional compilation was implemented to ensure cap_* functions were only included when HAVE_LIBCAP was defined, preventing build failures on systems lacking libcap. Additionally, a CSS variable typo was corrected in the spreadsheet UI, restoring the intended background color and improving visual fidelity. These targeted fixes reduced deployment friction and potential user regressions. The work demonstrated skills in build systems, C++ development, and front-end CSS, contributing to more robust cross-platform deployments.