Worked on the zephyrproject-rtos/poky repository to address a critical issue in the SDK extension population workflow. Focused on core development and build system stability, the developer resolved a NameError in the write_local_conf function by importing the shutil module, ensuring that file operations within the populate_sdk_ext path execute reliably. This targeted Python bug fix preserved downstream packaging flows and reduced triage time for build setups, maintaining the integrity of the build tooling. The work demonstrated attention to low-risk, high-impact changes in a critical code path, leveraging expertise in Python and build systems to support robust development environments.