Dezra Morrison contributed targeted improvements to the UCD-SERG/serocalculator repository, focusing on enhancing package reliability and release readiness. She addressed a snapshot testing issue by updating the test to correctly reflect the output of the estimate_scr.md function, ensuring that the test now checks nrow(sr_params) instead of nrow(curve_params). This change improved the accuracy and reproducibility of the testing process. Additionally, she performed routine package management by incrementing the version in the DESCRIPTION file, supporting clear versioning for downstream users. Her work demonstrated attention to detail in R development, particularly in snapshot testing and package maintenance over the project period.