Marcus Lund Christensen enhanced observability in the aau-giraf/visual-tangible-artefacts repository by delivering a Sync Service Logging Enhancement focused on artefact upload workflows. He refined the logging path within the _uploadArtefact function, standardizing log messages to improve clarity and traceability during API integration processes. Using Dart and backend development skills, Marcus ensured that the new logging approach facilitated quicker troubleshooting and reduced mean time to resolution for upload-related issues. His work maintained compatibility with existing CI pipelines and improved onboarding for new engineers by providing clearer log semantics, ultimately strengthening maintainability and incident response readiness within the codebase.