1. Go to your project in the Cloudflare dashboard and go to Workers & Pages / Site / Settings / Builds & deployments / Deploy hooks. Add a new deploy hook and copy it.
   
2. In the Cosmic dashboard go to Deploy to Cloudflare / Settings and add deploy_url as a Query Parameter with the Cloudflare deploy hook URL set as the value.
   
3. Make the extension available on any Object type on the Object edit page.
   
4. Go to any Object type that you added this extension to, and you should now see the "Trigger deploy" button.
   
5. After you trigger the deployment, you can see if it's working by going to the Site / Deployments page in the Cloudflare dashboard. You should see the status is "In progress".
   

Note: For automatic deployments on content changes, you can add the deploy hook as a webhook. In your Cosmic dashboard go to Bucket > Settings > Webhooks to enable webhooks on your Project.