Autumn

Autumn provides a macOS‑native window manager that is scripted in JavaScript or TypeScript, letting developers define custom window‑layout behavior directly from code. An embedded IDE, searchable documentation, and an interactive console are bundled, so users can write, test, and iterate on their window‑management scripts without leaving the application. The platform exposes APIs for reacting to system events such as application launch, sleep, wake, or hardware changes, enabling actions like preventing sleep while a specific app runs or animating windows in real time.

Targeted at developers who prefer a programmable approach to window organization, Autumn replaces static hot‑key schemes with a fully customizable, code‑driven workflow. By exposing window objects and system hooks, it lets users tailor window placement, visibility, and behavior to match personal habits or project requirements.

What distinguishes Autumn is its integration of a full‑featured JavaScript/TypeScript development environment with direct control over macOS windowing, allowing rapid experimentation and automation of window management tasks that would otherwise require manual interaction.