$ lumen --download

Lumen Desktop

Native app for Windows, macOS, and Linux. Bundles the daemon + chat UI — runs entirely on your machine, no tunnel.

Already installed?

Open Lumen Desktop

Hands off to the locally-installed app via the lumen:// protocol.

Detected:

Your OS

Download Lumen Desktop

Latest release

First-launch warning expected. The build is unsigned right now — Windows SmartScreen will show "Unverified publisher" and macOS Gatekeeper will say "from an unidentified developer." Right-click → Open on macOS, or click "More info → Run anyway" on Windows. Signed builds are on the roadmap.

All downloads

Windowsx64 .exe installer
WindowsARM64 .exe installer
macOSApple Silicon .dmg
macOSIntel .dmg
Linuxx64 AppImage .AppImage
Linuxx64 Debian/Ubuntu .deb

What's bundled

The Lumen daemon (no separate install)
The chat UI served from your machine, not the cloud
Direct loopback streaming — SSE tokens flush per write, no proxy buffering
Native folder picker for workspace paths
Auto-updates from GitHub Releases

Install — Windows

Download the .zip (x64 — for Intel/AMD PCs).
Right-click the downloaded file → Extract All to unzip it to a folder.
Open the extracted folder and double-click Lumen.exe. If SmartScreen blocks it, click More info → Run anyway.

Install — macOS

Download the .dmg matching your CPU (Apple Silicon for M1/M2/M3/M4, Intel for older Macs).
Open the DMG and drag Lumen to /Applications.
First launch: right-click the app and pick Open. Gatekeeper will warn that the developer is unidentified; click Open again to proceed.

Install — Linux

Pick AppImage (works on every distro) or .deb (Debian / Ubuntu / Pop_OS):

AppImage: chmod +x Lumen-*.AppImage, then ./Lumen-*.AppImage.
.deb: sudo dpkg -i lumen-*.deb, then launch from your app menu.

Prefer the web app?

Sign in here — the web version still works on every device with a browser. The desktop version is faster and adds native menus, multi-window, and offline-friendly behavior.