Generate AI video sales letters with Google VEO3

This workflow contains community nodes that are only compatible with the self-hosted version of n8n. VEO3 VSL Generator & Facebook Auto-Publisher What this workflow does This n8n workflow automates the full process of creating a short-form Video Sales Letter (VSL) using Google VEO3, adding captions via Creatomate, and publishing the final video directly to a Facebook Page. It's designed for creators, ecommerce brands, and marketers who want to generate and publish high-converting videos without video editing, manual uploads, or third-party tools. Technologies used Google Vertex AI (VEO3) – for AI-generated video generation Creatomate – for dynamic captioning Google Cloud Storage – for video

Help me set up the n8n workflow "Generate AI video sales letters with Google VEO3" (https://n8n.io/workflows/6449). It uses: HTTP Request, Google Cloud Storage, Basic LLM Chain, OpenAI Chat Model, Structured Output Parser, OpenAI, JWT. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.