cPanel Node.js App quick settings
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Node.js version: 16+
Application root: /home/USER/8n8-automation
Application URL: https://automation.YOURDOMAIN.com
Application startup file: server.js
Environment variables (if not using .env):
  N8N_BASIC_AUTH_ACTIVE=true
  N8N_BASIC_AUTH_USER=admin
  N8N_BASIC_AUTH_PASSWORD=<strong-password>
  WEBHOOK_URL=https://automation.YOURDOMAIN.com/

After creating the app, open Terminal and run:
  cd ~/8n8-automation
  npm install

Then restart the Node.js app from cPanel.