Gary Tierney developed a robust raw-window-handle integration for the zed-industries/zed repository, enabling seamless embedding of a Bevy 3D viewport within GPUI. Using Rust and leveraging graphics and system programming expertise, Gary replaced unstable panicking stubs with a reliable window and display handle implementation for X11Window. This approach allowed the creation of a child window whose surface dynamically fits GPUI element bounds, supporting stable 3D content rendering. Gary ensured quality by adding targeted test coverage and validating the solution with a live Bevy app embedded in GPUI, ultimately improving composability and runtime reliability for developers and end users.