Shaba worked on the packit/specfile repository, focusing on backend development with Python to address a stability issue in ALT Linux RPM macro processing. By refining the handling of macro level -14, Shaba ensured compatibility with ALT Linux rpm 4.13.0.1, directly reducing macro-related build failures in packaging workflows. The solution involved treating the problematic macro level as MACROFILES, which improved the reliability of specfile processing for ALT Linux environments. Although the work centered on a single bug fix rather than new features, it demonstrated a targeted and effective approach to maintaining robust backend systems using Python and Linux packaging tools.