Samuel contributed to the Leonidas-from-XIV/dune repository by enhancing build reliability and documentation quality over a two-month period. He developed a regression test to ensure sandboxed command execution consistency, addressing nondeterministic builds and improving CI stability. Using Shell scripting and Rst, Samuel refined command resolution logic to prevent cross-step interference and expanded test coverage to safeguard sandbox isolation. He also removed obsolete OS-specific workarounds from the test suite, reducing flakiness and simplifying setup. Additionally, Samuel improved documentation clarity and professionalism, making onboarding and collaboration easier. His work demonstrated depth in build systems, testing, and technical documentation within a complex codebase.