Sattar Imamov focused on stabilizing macOS input handling in the AvaloniaUI/Avalonia repository, addressing a platform-specific issue with XButtons mouse event mapping. He fixed incorrect press and release event handling for XButtons on macOS, improving input reliability and supporting a more consistent cross-platform experience. Working primarily in Objective-C, Sattar implemented targeted tests and conducted code reviews to ensure the fix’s reliability and prevent regressions. He also updated documentation to clarify macOS-specific edge cases and the rationale behind the changes. His work demonstrated depth in UI development and event handling, contributing to Avalonia’s performance and stability goals for macOS users.