WindowShell

WindowShell is an open-source framework for a cross-platform window management shell. It provides a modular, pluggable architecture that separates window rendering, input handling, and UI layout from the underlying backends. The project aims to let developers build custom desktop shells and window managers that run on multiple operating systems and display servers.

WindowShell abstracts common window management tasks such as tiling, stacking, and floating, while exposing APIs for composition and theming. It supports backend adapters for popular windowing protocols and platforms, including X11, Wayland, and native Windows and macOS environments, enabling a single codebase to run across platforms.

The core comprises a runtime, modules for window control, layout, input, and compositing, and a plugin system for decorations and tools. The rendering pipeline can use hardware-accelerated compositing and can be extended with external toolkits or UI components. Scripting and configuration are supported through a declarative JSON/YAML interface and a JavaScript plugin API.

Usage and licensing: WindowShell targets developers creating alternative desktop experiences, embedded systems, or research prototypes. It is released under a permissive open-source license, with development in public repositories and issue trackers.

Status: The project continues to evolve with community contributions and periodic releases, focusing on stability, accessibility, and cross-platform compatibility.

See also: Windows Shell, X Window System, Wayland, Window manager, Desktop environment.