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How to run DeepSeek Harness from an AppImage that updates itself with DeepSeek Harness Linux

Run the single-file AppImage without installing it and let it check for updates.

Remote script. The auto-update channel checks only HTTPS transport and feed metadata, with no code signature verification, so verify the SHA256 checksum for every download.

Who it is forA Linux user on any distribution who wants a no-install build and does not want to repackage the app after each release.

The problemInstalling a desktop app system-wide is not always wanted, and manual reinstalls after each release are tedious.

The outcomeDeepSeek Harness runs from one executable file, and the AppImage build receives updates through the built-in updater channel.

What you need first

  • A Linux machine on x64 or arm64, such as Ubuntu, Debian, Raspberry Pi 5, or an ARM server
  • Internet access to download packages from the repository's Releases page
  • sudo rights to install the .deb package or libfuse2
  • For building from source: Node.js 24+, pnpm, and libfuse2 on the build host

Steps

  1. Download the .AppImage for your architecture from the repository's Releases page.
  2. Install the runtime dependency on Debian or Ubuntu with sudo apt install libfuse2. On Fedora or RHEL, use sudo dnf install fuse2.
  3. Make the file executable with chmod +x deepseek-harness-*-linux-x64.AppImage.
  4. Start the app with ./deepseek-harness-*-linux-x64.AppImage.

Prompt for your agent

For the repo Zhou-Yujing114514/deepseek-harness-linux, download the x64 .AppImage into <target-folder>, make it executable, and start it with `./deepseek-harness-*-linux-x64.AppImage`. Report whether the app window opens and which SHA256 checksum you compared against the one on the Releases page. Verify the checksum matches before you run the file.

Caveat. The AppImage needs FUSE 2 (libfuse2) installed, and the build is unsigned, so the update check does not verify code signatures.

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