Worked on the shadPS4 repository to optimize CI/CD workflows by implementing build caching for apt dependencies. Leveraging GitHub Actions and the awalsh128/cache-apt-pkgs-action, introduced a system that caches apt package installations such as clang-format-18 and other development libraries across jobs. This approach, developed using Shell and YAML, reduced redundant installations and accelerated both pull request validation and nightly build processes. The solution improved pipeline efficiency and resource utilization, enabling faster feedback cycles for contributors. The work focused on build automation and package management, delivering a targeted feature that addressed bottlenecks in continuous integration without introducing new bugs.