During their work on the NOAA-FIMS/FIMS repository, Michal Ciechanowski developed a unified composition initialization function in R, consolidating previously separate AgeComp and LengthComp flows into a single, reusable initialize_comp method. This refactoring improved code maintainability and reusability by updating logic to support complex fleet data structures while ensuring backward compatibility. Michal applied rigorous unit testing and enhanced error handling, focusing on type validation to strengthen reliability. The work demonstrated depth in software refactoring and R programming, addressing both technical debt and future extensibility. Although the period was brief, the contribution provided a robust foundation for further feature development.