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⇱ Mir-Based Miracle-WM 0.9 Introduces A WebAssembly Plugin System - Phoronix


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Mir-Based Miracle-WM 0.9 Introduces A WebAssembly Plugin System

Written by Michael Larabel in Wayland on 9 April 2026 at 05:37 AM EDT. 1 Comment
Miracle-WM as the Wayland compositor / window manager built atop Canonical's Mir project is out with a big new feature release. This "hackable" and i3/Sway-inspired Wayland compositor has landed a WebAssembly-based plug-in system for opening up new possibilities as well as a new Rust API with this week's v0.9 release.

Miracle-WM 0.9 introduces a WebAssembly-based plug-in system that can configure window management, animations, configurations, and more. With loading as WASM payloads it should be more secure and portable than alternatives. Miracle-WM developer Matthew Kosarek has provided a video of the WASM plugins in action:

Miracle-WM 0.9 also brings a new Rust API for those wanting to write plug-ins for Miracle using the Rust programming language.

👁 MiracleWM screenshot


Some other new changes include cursor theme support. a new key sequence to support reloading the Miracle configuration, performance improvements, and a variety of other updates and new features. Plus bug fixing too.

Miracle-WM 0.9 downloads and more details via GitHub.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.