Worked on the FlagTree/flagtree repository to optimize the build process by introducing cached binary version verification. The approach involved checking the version of binaries stored in ~/.triton before using those in the installed destination, which prevented unnecessary downloads when the cached version was current. Implemented robust error handling to ensure that if version verification failed, fresh binaries would be downloaded, thereby improving build reliability. This feature was developed using Python and Shell scripting, with a focus on build engineering best practices. The result was faster builds, reduced network usage, and more dependable continuous integration environments when valid caches were present.