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The Settings page controls app-wide preferences. Server-specific settings live on each server detail page.

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Appearance

Choose light or dark appearance. The app uses a custom frameless title bar and applies the theme through the renderer layout.

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ngrok

Configure public tunnel support:
  • Enable or disable the integration.
  • Add, validate, change, or remove the authtoken.
  • See a censored token after saving.
  • Open ngrok account resources.

ngrok tunnels

Learn how public TCP tunnels work in Catalyst.

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AI assistant

Configure provider, model, base URL, and API key for the optional assistant.

AI assistant

Review context sharing and confirmed actions before enabling it on important servers.

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Shutdown prompt

The shutdown prompt can warn when running servers are active. If enabled, closing Catalyst while servers are running opens a confirmation dialog before stopping processes and tunnels.

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About and updates

The About area shows the app version injected from package.json. Catalyst can check GitHub releases and show an update notification when a newer version is available.