Ren Yang focused on improving firmware reliability by addressing SMBIOS Type 20 Extended Address display issues in both the tianocore/edk2 and microsoft/mu_basecore repositories. Working in C, he corrected the structure used for printing extended starting and ending addresses in SmbiosView, ensuring accurate hardware inventory reporting. He implemented the fix in edk2 and then aligned mu_basecore through a cherry-picked commit, demonstrating careful cross-repository coordination. This work required a strong understanding of firmware development and system programming, and resulted in more accurate data representation across both codebases. The targeted bug fixes enhanced maintainability and reduced the risk of reporting errors.