Can I vibe code RudderStack?

Build a lightweight customer data pipeline server in Node.js (TypeScript) and Fastify that acts as a basic RudderStack alternative for a single store.

1. DATA MODEL & INGESTION:
- Create an endpoint `POST /v1/track` and `POST /v1/identify` accepting Segment/RudderStack formatted JSON bodies (anonymousId, userId, event, properties, context, timestamp).
- Validate schemas using Zod. Drop invalid events to an isolated dead-letter queue table.
- Push validated events to a Redis Stream (`events:raw`).

2. WORKER & WAREHOUSE STORAGE:
- Create a background worker that reads from `events:raw` in batches of 500 or every 2 seconds.
- Write raw event logs to a PostgreSQL table (`raw_events`) with JSONB fields for payload, optimized for bulk inserts.

3. DOWNSTREAM ROUTING:
- Implement a modular destination plugin architecture.
- Build two downstream destination handlers: (a) Meta Conversions API worker, (b) Webhook Dispatcher.
- Execute transformation functions before dispatch. Handle HTTP 429 rate-limiting with exponential backoff retries using BullMQ.

4. FAILURE HANDLING & MONITORING:
- If a destination fails after 5 retries, send payload to `destination_failures` table with response status and error stack.
- Provide an endpoint `GET /health` returning queue lag and database connection status.

Out of scope: Complex UI builders, multi-tenant workspace permissions, client SDK generation.

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