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Life & fun · May 20, 2025

AT

A Tiling Window Manager for Windows, Written in Janet

Hi HN! I read[1] about Janet[2] some time ago, then immediately got impressed by the enthusiasm of its community, and by the language itself, so I started playing with it. At the time I was searching for a tiling window manager for Windows, and unavoidably the idea of scratching my own itch with Janet got hold of me, so Jwno was born. Simply put, Jwno is a keyboard-driven tiling window manager for Windows, scriptable with Janet. But since it has a complete Lisp runtime, and a thin wrapper library for Win32 APIs[3], you can certainly do much more with it. I hope you'll enjoy playing with it…

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In plain words

Jwno is a keyboard-driven tiling window manager for Windows that uses the Janet programming language for scripting. It provides a complete Lisp runtime and includes wrapper libraries for Win32 APIs, allowing users to customize and extend its functionality beyond basic window tiling. The tool is designed for users who prefer keyboard-centric workflow management and want to script their window manager behavior.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hi HN! I read[1] about Janet[2] some time ago, then immediately got impressed by the enthusiasm of its community, and by the language itself, so I started playing with it. At the time I was searching for a tiling window manager for Windows, and unavoidably the idea of scratching my own itch with Janet got hold of me, so Jwno was born. Simply put, Jwno is a keyboard-driven tiling window manager for Windows, scriptable with Janet. But since it has a complete Lisp runtime, and a thin wrapper library for Win32 APIs[3], you can certainly do much more with it. I hope you'll enjoy playing with it as much as I enjoyed building it. And yes, I use StumpWM on the Linux side, by the way. [1]: https://ianthehenry.com/posts/why-janet/ [2]: https://janet-lang.org/ [3]: https://github.com/agent-kilo/jw32

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