Builder Desktop provides multiple options for running Fusion projects, giving you flexibility and performance advantages over the web-based application.
Builder Desktop offers three ways to run your Fusion projects:
Run fusion projects in cloud containers, same as our web app.
Run Fusion projects directly on your local machine without containerization.
Benefits:
- Fastest performance and startup times
- Direct access to your local development environment
- No additional software requirements
- Best for rapid development and iteration
Requirements:
- May require additional tools depending on your project
- These are typically already installed on most development machines
Run Fusion projects in isolated local Podman containers.
Benefits:
- Good isolation between projects
- Consistent environment across different machines
- Local control over the container environment
To change your Fusion execution environment:
- Open Builder Desktop
- Go to Settings from the left sidebar → scroll all the way down and click Advanced Settings → Labs
- Select your preferred option:
- Install Builder Desktop if you haven't already
- Configure your execution environment in Labs settings (we recommend "Local Machine")
- Create or open a Fusion project to start developing with improved performance
- Enjoy faster iteration cycles with local execution
For comprehensive debugging and support, Builder Desktop includes a dedicated Fusion Debug Info modal that provides:
- Project settings and configuration details
- Container logs inspection and download
- Direct access to developer tools for the webview
- One-click issue reporting with automatic log attachment
- Open the command palette by pressing
Cmd/ctrl + K - Type
fusion: Debug Infoor justdebug infoand select "Fusion: Debug Info" from the dropdown
- The Debug Info modal will open showing all available debugging tools
- View Project Settings: See your current Fusion execution environment and configuration
- Inspect Logs: View real-time container logs with counter indicators for repeated messages
- Download Logs: Export logs for offline analysis or sharing with support
- Clear Logs: Reset the log history for a fresh start
- Open Dev Tools: Access browser developer tools for the Fusion webview (useful for debugging frontend issues)
- Report Issue: Submit feedback with automatic log attachment for faster support resolution
You can also enable viewing the fusion logs in real time
- Press
cmd/ctrl + k, then chooseToggle Developer Options - Enable
Debug Fusionto show project startup logs in the interface
- Ensure you have the required development tools (Node.js, Git, etc.) installed
- Check that your project dependencies can be installed locally
- Use the Debug Info modal to view detailed error logs and project configuration
- Verify container permissions and access
- Check Docker/Podman installation and configuration
- Review container logs in the Debug Info modal for specific error messages
- Project won't start: Check logs for startup errors and configuration issues
- Runtime errors: Monitor real-time logs during development
- Performance issues: Download logs for analysis or attach to support tickets
- Need support: Use the built-in reporting feature with automatic log attachment
When reporting issues to Builder support:
- Open the Debug Info modal (
Cmd/Ctrl + P→fusion: Debug Info) - Click "Report Issue" to open the feedback form
- The checkbox to "Include container logs with feedback" will be automatically available
- Describe your issue and submit - logs will be securely encrypted and attached
- Support staff can decrypt and analyze your logs for faster resolution