Worked on the mne-tools/mne-python repository to address a key usability issue in neuroimaging workflows by improving error handling for FreeSurfer integration. Focused on debugging and Python development, the contribution clarified the error message shown when the FreeSurfer executable is missing, providing users with actionable configuration guidance. This technical approach reduced troubleshooting time and support overhead, making it easier for users to correctly set up their environment. By enhancing error messaging and streamlining the onboarding process, the work strengthened the reliability of preprocessing pipelines. The update demonstrated attention to user experience and robust error handling within a collaborative open-source context.