During November 2024, Oliwier Matus developed foundational improvements for the UEK-i-team/unievent-planner-frontend repository, focusing on code quality and UI consistency. He implemented ESLint-driven import organization in manageUsers.tsx and standardized global body styles, padding, and font sizes across calendar and manageUsers components. Using React, Styled Components, and TypeScript, Oliwier’s targeted refactors introduced no functional changes but established a consistent visual baseline and reduced future maintenance overhead. These updates enhanced developer productivity by simplifying code reviews and minimizing style drift, effectively preparing the codebase for upcoming features and ensuring maintainability across the frontend architecture without addressing user-facing bugs.