During their work on the JetBrains/Avalonia repository, Nootny focused on stabilizing the Windows dispatcher by addressing a critical bug in the OS timer interval calculation. Using C# and leveraging their skills in dispatcher implementation and Windows development, they corrected the timer update logic to prevent drift and improve UI responsiveness. This fix enhanced the reliability of timer-driven UI components on Windows, reducing edge-case failures and aligning timer behavior with cross-platform expectations. Although the contribution was limited to a single bug fix over one month, the work demonstrated a precise understanding of low-level timing issues and their impact on user experience.