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Connect

  1. Install OpenCode if needed.
  2. Download a compatible model in Magnitude.
  3. Open Connections → OpenCode and click Connect.
  4. Select a downloaded model on the connected card, then click the command to copy it.
  5. Paste it into your terminal from your project folder. On Windows, use PowerShell.
Choose a Magnitude model in OpenCode’s model selector. If you use JSONC or an explicit OpenCode config, check the configuration paths shown in Connections: OpenCode can merge more than one file.

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Run OpenCode

After connecting in Magnitude, start OpenCode with:
Replace MODEL_ID with the exact model ID, such as gemma-4-e2b-it-qat:gguf:q4, rather than its display name. The command shown in Connections already includes the correct ID for your selected model, so you can copy it without editing. Keep Magnitude running; it loads the model when the agent requests it.

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Configuration

Connect writes ~/.config/opencode/opencode.json. Location overrides: OPENCODE_CONFIG and XDG_CONFIG_HOME.

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On another computer

  1. In Magnitude, turn on Settings → Network access.
  2. On the other computer, open http://ADDRESS:10100 in a browser, using the address from Reachable at, and sign in with the API key.
  3. In Connections, click Copy setup prompt on OpenCode and send it to your agent.

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Edit the files yourself

Use the address from Reachable at for ADDRESS and the API key for API_KEY. ~/.config/opencode/opencode.json: