Worked on the GispoCoding/master-training-data repository to enhance the clarity and reliability of QGIS training materials. Focused on improving instructional content by updating R Markdown exercises, specifically clarifying area terminology to distinguish between 'pinta-ala' and 'pohjanala' for building polygons. Addressed cross-platform compatibility by resolving image file extension case sensitivity, ensuring assets load correctly on all systems. Leveraged skills in geospatial data analysis, QGIS, and technical writing to reduce learner confusion and streamline onboarding. The work contributed to more maintainable and accessible training resources, minimizing support needs and supporting consistent deployments across diverse computing environments.