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File Sync

Your project files sync automatically to the sandbox. Large directories like node_modules/, .next/, and venv/ are excluded.

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Credentials

These sync automatically from your home directory:
  • Git - ~/.gitconfig for your identity
  • SSH - ~/.ssh/ for git push/pull
  • AWS - ~/.aws/ for AWS CLI and SDKs
  • Agent configs - Claude, OpenCode, and Codex settings

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Preview URLs

Dev servers get public preview URLs automatically: 
Preview: https://xxx-3000.modal.host
Press Ctrl+b i during a session to see the URL.

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Persistent Sessions

Use --persist to keep sessions alive: 
proliferate claude --persist
Disconnect anytime. Reconnect with: 
proliferate resume
Need help? Email [email protected] - we respond within minutes (unless we’re asleep).