Hassan enhanced the ScuffleCloud/scuffle repository by improving the portability of its build automation scripts. He updated the Justfile shebangs to use /usr/bin/env bash, replacing hard-coded interpreter paths and ensuring that the correct shell is resolved via the system PATH. This adjustment affected the test, grind, and doc targets, reducing environment-specific failures and making the scripts more reliable across different development machines and CI pipelines. Hassan’s work demonstrated a strong understanding of shell scripting and build automation, focusing on cross-environment compatibility and deterministic execution. The changes streamlined onboarding for new environments and contributed to more robust scripting practices.