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How to install DeepSeek Harness desktop on Ubuntu from .deb with DeepSeek Harness Linux

Install the Linux desktop client with dpkg and launch it from the app menu or terminal.

Remote script. The .deb is unsigned, so only install it from this repository's Releases and check the SHA256 checksum published with it before running dpkg.

Who it is forAn Ubuntu or Debian user who wants DeepSeek Harness as a normal system package, because the official desktop app has no Linux build.

The problemThe official DeepSeek Harness desktop app ships only for macOS and Windows, so Linux users have to use the web version or compile from source.

The outcomeThe DeepSeek Harness desktop app is installed through the system package manager and starts from the application menu or the terminal.

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. Open the repository's Releases page and download the .deb file that matches your architecture, for example the x64 build.
  2. In a terminal, change to the folder that holds the downloaded file.
  3. Run sudo dpkg -i deepseek-harness-*-linux-x64.deb to install the package.
  4. Run deepseek-harness in the terminal, or open DeepSeek Harness from the application menu.

Prompt for your agent

For the repo Zhou-Yujing114514/deepseek-harness-linux, download the x64 .deb from its Releases page to <target-folder> and install it with `sudo dpkg -i deepseek-harness-*-linux-x64.deb`. Report whether the install finished without errors and whether `deepseek-harness` starts a desktop window. Verify by checking that the exit status of the install command is 0.

Caveat. The Linux build is unsigned and community-maintained, and LibreOffice-based Office document conversion is not available on Linux yet.

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