Yongxuan Wang contributed to the espressif/qemu repository by addressing a critical bug in the RISC-V APLIC MSI interrupt handling logic. Focusing on embedded systems and hardware emulation, Yongxuan implemented corrections to the pending bit clearing mechanism, ensuring compliance with the RISC-V AIA specification. The work involved refining the emulation of in_clrip and clripnum register writes in C, which improved the accuracy and stability of MSI-enabled interrupt domains within QEMU. Although no new features were introduced during this period, the depth of the fix enhanced interrupt delivery reliability, reducing edge-case misbehavior for users relying on RISC-V MSI interrupts.