Selman Kayrancioglu focused on enhancing the stability and reliability of the ghostty-org/ghostty project during March 2026, addressing a nuanced issue in input handling for macOS. He delivered a targeted bug fix that resets mouse state and the suppressNextLeftMouseUp flag when application focus shifts between splits, preventing phantom mouse drags and errant selections. This work, implemented in Swift with attention to user interface design and macOS development practices, improved the predictability of multi-split workflows. By refining input state management during focus transitions, Selman’s contribution reduced unintended interactions and laid a solid foundation for more robust user experiences in future updates.