Technical Implementation:

1. Install the @horka.tv/n8n-nodes-storage-kv community node for key-value storage
2. Configure your local webhook address in the workflow
3. Activate the workflow to generate your public webhook token
4. Use https://webhook.site/[YOUR TOKEN] as your webhook destination

Behind the scenes: The workflow utilizes an external service that temporarily stores incoming webhook requests. Your local n8n instance polls this service regularly and processes any new requests, creating a secure bridge between public services and your local environment without opening any ports or exposing your network.