Observed arrival · 2026-09-29
Leanux puts Android apps over a Lean kernel
Leanux is a phone operating system with a Lean 4 kernel, currently demonstrated running unmodified Android apps on QEMU.
○Open
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- 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.
Observed signals
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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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