Kyli worked on stabilizing the image-building process for the coolsnowwolf/immortalwrt repository, focusing on build system configuration and package management using Makefile. Over two months, Kyli addressed two critical bugs: first, by correcting the APK keys directory path in the Image Builder to ensure proper key placement for APK packaging, and second, by updating the Makefile to pass the local repository directly in the APK command, resolving issues with relative paths in the repositories file. These targeted fixes improved build reliability and reproducibility, particularly when including local or custom packages, demonstrating careful attention to build system robustness and maintainability.