Abdurrahman Akbulut worked on stabilizing macOS window management for the ghostty-org/ghostty repository, focusing on accurate restoration of window size and position during closures and initial launches. Using Swift and Object-Oriented Programming, he addressed a bug where windows did not restore to their explicit coordinates, aligning the behavior with native AppKit state restoration. He refactored the window cascade logic into a centralized helper function, improving code readability and maintainability. By persisting both frame origin and size, Abdurrahman ensured faithful state persistence and reduced future regression risk, demonstrating a thoughtful approach to UI design and incremental delivery in macOS development.