Katarzyna Stegienko focused on improving developer onboarding for the mudita/mudita-center repository by updating the project’s documentation to align with recent changes in the command-line interface. She identified and corrected outdated quickstart instructions, replacing legacy commands with the current 'npm run app:develop' and 'npm run app:dist' workflows. Using Markdown and documentation best practices, Katarzyna ensured that new contributors could set up and build the project without confusion or errors. Her work, tracked through version control and linked to a specific bug report, demonstrated attention to detail and effective collaboration with both documentation and development teams over the course of the month.