Jan Wille enhanced code readability in the Mbed-TLS/mbedtls-framework repository by standardizing function call formatting throughout the codebase. Focusing on C programming and code formatting, Jan applied non-functional changes that aligned the project with established styling guidelines, improving consistency and maintainability. Although no functional features or bug fixes were introduced during this period, the work facilitated more efficient code reviews and streamlined onboarding for new contributors. By ensuring uniform formatting of function calls and parameters, Jan’s contribution addressed long-term maintainability concerns and supported collaborative development practices, demonstrating attention to detail and a methodical approach to code quality in C projects.