Worked on the DragonBluep/openwrt repository to address build stability issues related to e2fsprogs integration. Focused on resolving incompatibilities between the system libblkid probe API and the internal blkid stub, the solution involved overriding configure cache variables to consistently select the internal stub. This approach eliminated build-time errors, particularly those affecting plausible.c when e2fsprogs version 1.47.0 or higher was present, and led to more reliable CI and build results across various host environments. The work demonstrated proficiency in C programming and build system configuration, utilizing Makefile to ensure consistent and traceable improvements to the build process.