See it in action



Features
Native calls (in progress)
MatrixRTC voice & video calling with fully native GNOME UI — no embedded browser.
Full E2EE
Cross-signing, QR & emoji verification, key backup, and recovery — inherited from Fractal.
Sliding sync (planned)
Simplified sliding sync for instant startup and a snappy room list on large accounts.
QR login (planned)
Scan a code from another device and you are in — no password typing.
Rich messaging
Reactions, edits, replies, read receipts, typing, location sharing, and media viewing.
Adaptive GNOME design
A native Libadwaita interface that fits large desktops and small phone screens alike.
Get started
flatpak remote-add --if-not-exists tuna-os https://tunaos.org/flatpak/tuna-os.flatpakrepo
flatpak install tuna-os org.tunaos.mandelbrotgit clone https://github.com/tuna-os/mandelbrot
cd mandelbrot
flatpak-builder --user --install build org.tunaos.mandelbrot.json