See it in action
Features
📞
Native calls
End-to-end encrypted MatrixRTC voice & video calling with fully native GNOME UI — no embedded browser. Experimental.
Sliding sync
Simplified sliding sync (MSC4186) for instant startup, with automatic classic-sync fallback.
📱
QR login
Sign in by scanning a code from another device, or link a new device from settings.
🧵
Threads & polls
Adaptive thread panel with per-thread drafts; create, vote on, and end polls.
🎙️
Voice messages
Record and send voice messages with live level metering and waveforms.
🔐
Full E2EE
Cross-signing, QR & emoji verification, key backup, and recovery — inherited from Fractal.
Get started
Flatpak (TunaOS remote)
flatpak remote-add --user --if-not-exists tuna-os https://tunaos.org/flatpak/tuna-os.flatpakrepo
flatpak install --user tuna-os org.tunaos.mandelbrotBuild from source
git clone https://github.com/tuna-os/mandelbrot
cd mandelbrot
flatpak-builder --user --install build org.tunaos.mandelbrot.jsonMore from TunaOS
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