Pen-Chunx Lu contributed to the Dasharo/coreboot repository by developing two targeted firmware features over a two-month period. He implemented a PCI IRQ routing enhancement that introduced a new function for writing ACPI _PRT tables, improving interrupt configuration accuracy and hardware compatibility on Intel Xeon SP server platforms. Additionally, he delivered a dynamic SSDT for the Gen6 LPC controller, addressing ACPI device management and mitigating boot-time issues on Gen6 systems. His work demonstrated depth in system programming, embedded systems, and device driver development using C, focusing on low-level firmware integration and stability improvements without addressing bug fixes during this period.