Sanctum

The desktop client for mithraic.space
Private. Self-hosted. No tracking, no telemetry, no nonsense.
Windows & Linux.

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What is Sanctum?

Sanctum is the official desktop client for mithraic.space — a private, self-hosted chat community. It's hardwired to connect exclusively to mithraic.space and ships with custom branding and a fully self-contained auto-update pipeline hosted on a private Forgejo instance.

Built on top of Stoat for Desktop, which is itself built on the open-source Revolt platform.

No reliance on external services. Everything stays in-house.

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Installing

Grab the latest build from the Releases page.

Linux

mkdir -p ~/.local/share/sanctum
unzip Sanctum-linux-x64-*.zip -d /tmp/sanctum-extract
cp -rT /tmp/sanctum-extract/Sanctum-linux-x64 ~/.local/share/sanctum/

cat > ~/.local/share/applications/sanctum.desktop << EOF
[Desktop Entry]
Name=Sanctum
Exec=$HOME/.local/share/sanctum/sanctum
Icon=$HOME/.local/share/sanctum/resources/assets/desktop/icon.png
Type=Application
Categories=Network;InstantMessaging;
StartupWMClass=sanctum
EOF

Search for Sanctum in your app launcher and you're in.

Windows

Extract the zip, run sanctum.exe.

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Auto-updates

Sanctum checks for updates on every launch. When a new version is available, you'll get a desktop notification — it downloads and installs in the background. Click the notification to restart into the new version.

You can also trigger a manual check anytime from the tray icon → Check for Updates.