Ales Teska worked on stabilizing the system clock counter in the OpenRakis/Spice86 emulator, focusing on correcting a critical bug that affected timing accuracy. By analyzing the system’s call number assignments, Ales identified and resolved an issue where handlers for setting and getting the system clock counter were incorrectly assigned. This fix, implemented in C# and leveraging system programming expertise, improved the reliability of clock-related operations within the emulator. The work demonstrated careful attention to code quality, with precise commit messaging and traceability, and contributed to the overall stability of Spice86 by ensuring accurate management of key timing mechanisms.