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Polonium

Polonium is a free, open-source desktop utility for Linux. An (unofficial) spiritual successor to Bismuth built on KWin 6. It has 1,177 GitHub stars and is released under the MIT license. Its source code is on GitHub at zeroxoneafour/polonium.

github.com/zeroxoneafour/polonium (opens in a new tab)

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About Polonium

An (unofficial) spiritual successor to Bismuth built on KWin 6. X11 is not supported. If you encounter an issue running the script on X11, make sure it is reproducible in Wayland before submitting a bug report.

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FAQ

Polonium FAQ

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Is Polonium free and open source?

Yes. Polonium's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Polonium?

Download the installer for Linux from its GitHub Releases page (latest: v1.2.2) or the project website.

Is Polonium still maintained?

The repository's most recent commit was on Oct 23, 2026. appsgit only lists apps whose repository had a commit in the last six months.