Two days without writing a single line of code: he reverse-engineered TeamViewer into a free, open-source version
No cloud, no account registration; connect via Wi-Fi, USB, or Bluetooth. One mouse and keyboard control Windows and Mac at the same time, copy and paste across machines, and files transfer when dragged past the screen edge. A developer did it in two days with Opus 5.5, without writing a single line of code himself.
A developer used Claude Code plus Opus 5.5 to reverse-engineer TeamViewer and built a tool called DuoDesk. Free and open source.
Here's how it works: A Windows desktop and a MacBook sit side by side. Move the mouse off the edge of the Windows screen, and the cursor lands directly on the Mac, with the keyboard switching over too. Copy on the Mac, switch to Windows, and paste—the content is still there. Drag a file to the screen edge and it transfers over, as if you were spanning two monitors.
What it does:
- Move the cursor off the edge of the Windows screen and it drops into the Mac, with the keyboard following automatically
- Cross-system clipboard: copy on Mac, paste on Windows
- Drag files across the screen edge to transfer them directly
- Use an old laptop or Android tablet as a second screen
- Open apps from another computer in a window
- Connect your phone to the desktop; see incoming calls, texts, and notifications, and use the camera as a webcam
- Connection methods support Wi-Fi, USB cable, and Bluetooth
- No account, no cloud, encrypted transfers
The build process is documented in detail. Step 1: Claude Code runs on Opus 5.5, paired with an open-source screen-sharing engine. Step 2: 11 parallel agents renamed about 370 files, and device pairing still worked afterward. Step 3: GitHub Actions automatically builds five package types—.dmg, .exe, AppImage, .deb, and .apk—whenever a tag is pushed. Step 4: The cursor got stuck at the screen edge, and Opus read the logs and fixed it. Step 5: An agent took down the official website, and Opus rolled it back within 20 seconds. Step 6: One-click download picks the right installer for your system.
The author's exact words: two days, zero lines of code.
Download: http://getduodesk.vercel.app
GitHub repository: https://github.com/0xCodez/DuoDesk
Someone in the comments asked a practical question: does the clipboard transfer only text, or also images and files, and does it go over the LAN or through a relay? The author replied that both Wi-Fi and Bluetooth are supported. For more detailed edge cases, you should be able to find them by digging through the code in the repository.
发布时间: 2026-11-01 01:33