During the month, contributed to the NOAA-FIMS/FIMS repository by developing a unified composition initialization function in R. This work consolidated previously separate AgeComp and LengthComp initialization flows into a single, reusable function, streamlining the codebase and improving maintainability. The approach involved refactoring existing logic to support fleet data structures while ensuring backward compatibility. Comprehensive unit tests were added to validate error handling and type safety, enhancing overall reliability. The focus on software refactoring and robust unit testing demonstrated attention to code quality and future extensibility, resulting in a more maintainable and reliable initialization process for composition data within the project.