Jaskaran Singh contributed to the HabanaAI/optimum-habana-fork repository by enhancing build automation and test reliability over a two-month period. He implemented a Makefile-based error reporting mechanism that captures and aggregates exit statuses from individual test commands, providing granular feedback to streamline debugging and continuous integration workflows. Additionally, he introduced a default lazy mode configuration by setting PT_HPU_LAZY_MODE=1 in the Makefile, reducing manual setup and aligning with future optimization plans. His work leveraged Makefile, Python, and shell scripting, demonstrating a practical approach to build systems and configuration management while maintaining compatibility and minimizing disruption to existing processes.