Their GUI system (GPUI) is not very mature for use outside of Zed. GPUI is basically a UI framework in the truest sense: a framework for building UI... frameworks/components. It has core functionality for async execution, an ECS for grabbing shared resources, and a div.

It's basically like building a website with div and basic CSS.

gpui-component exists: https://github.com/longbridge/gpui-component

Up until sometime late 2025 GPUI wasn't even on crates.io, and it seems like the GPUI-component ecosystem still promotes using git deps. It was also in "read the code for docs" state for a very long time

It's been a while since I've used it, but there were weird things missing too like the Scollbar was located in Zed's UI component crates instead of core GPUI. Arbitrary text selection also is not possible, which is something I really value about egui.