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Syntheo Desktop is published for Linux (AppImage and .deb) and Windows (signed .exe installer and .msi), on x64. macOS packages are not published yet. All packages are available on the GitHub Releases page.

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Choose the right package

The links above always point to the latest version. Each release also publishes the same files under a versioned name, for example Syntheo_0.4.0_amd64.AppImage or Syntheo_0.4.0_x64-setup.exe.

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Linux

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Install script (AppImage)

The script downloads the AppImage of the latest release, checks its SHA256 sum, saves it as ~/.local/bin/Syntheo-<version>.AppImage, and creates the syntheo command. Several versions can coexist. Useful options:
  • --version v0.4.0 installs a specific version.
  • --deb downloads the .deb package instead of the AppImage.
  • --to <folder> changes the installation folder (~/.local/bin by default).
If ~/.local/bin is not in your PATH, the script tells you which line to add. On Arch-based distributions (Omarchy, EndeavourOS, Manjaro), the AppImage needs FUSE 2:

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Debian and Ubuntu

You can also download Syntheo-linux-amd64.deb and install it with sudo apt install ./Syntheo-linux-amd64.deb.

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Manually downloaded AppImage

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Black window on Wayland

Syntheo uses WebKitGTK graphics acceleration. If the window stays black (this can happen with some drivers, for example NVIDIA on Wayland), disable DMA-BUF rendering, then, if needed, compositing:

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Windows

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Installer

Download Syntheo-windows-x64-setup.exe, then run it. It installs into your user profile, without administrator rights. The installer and the .msi are signed (Azure Artifact Signing): Windows attributes them to William Derue. SmartScreen may still show a warning on the first versions, while the binary builds its reputation.

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Install script (PowerShell)

The script downloads the installer of the latest release, checks its SHA256 sum against SHA256SUMS-windows, and installs it silently (per user, without elevation). For a specific version:

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MSI

Download Syntheo-windows-x64.msi for a managed installation (GPO, Intune, and so on).

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Verify a package

Each release publishes SHA256SUMS (all packages) and SHA256SUMS-windows, along with a GitHub provenance attestation.
On Windows, compare the output of Get-FileHash <file> with the matching line in SHA256SUMS-windows.

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Update

Syntheo has no built-in automatic update. To move to a new version, run the install script again or download the new package from GitHub Releases. Your notes are kept. To remove the app, alone or with all your data, see Uninstall Syntheo.

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macOS

macOS packages are not published yet. To build the app yourself, follow Construire depuis les sources (build from source, in French) in CONTRIBUTING.md.

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Next step

Once the app is installed, continue with Your first meeting. If the app does not open or does not capture audio, see Troubleshooting.