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Card 423 of 9712026-09-29 issue

Observed arrival · 2026-09-29

Leanux puts Android apps over a Lean kernel

leanux.org Visit website
Editorial interest 85/100 Selection signal · not a rating of the site

Leanux is a phone operating system with a Lean 4 kernel, currently demonstrated running unmodified Android apps on QEMU.

Landing page captured for the 2026-09-29 issue.
For
Kernel developers studying verified systems
Worth noticing
Each app is booted by a script that reads back pixels, database bytes, or audio samples.

Field notes

The page describes unmodified APKs running through Android's app_process and ART, with tests checking concrete outputs rather than relying on a visual demo alone. Its examples span Firefox, Termux, SQLite, audio, and OpenGL ES. The project reports proofs for framebuffer bounds and paginated directory listings; real-phone work is aimed at a OnePlus 6T, while the demonstrations described here remain on QEMU.

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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leanux.org

Landing page observed 2026-09-29. The live site may have changed.