Can I vibe code Moosend?

Build an open-source email marketing automation server using Node.js, Express, PostgreSQL, Prisma, and Redis with BullMQ. Integrate Resend or AWS SES for email delivery.

1. DATA MODEL:
- Subscriber: id, email, status (subscribed, unsubscribed, bounced), attributes (JSONB), created_at.
- List: id, name, description.
- Campaign: id, name, subject, body_html, body_text, status (draft, queued, sending, sent), scheduled_at.
- Sequence: id, name, trigger_event (e.g., 'cart_abandoned', 'user_signup').
- SequenceStep: id, sequence_id, delay_minutes, template_id, step_order.
- SequenceState: id, subscriber_id, sequence_id, current_step_id, execute_at, status (pending, completed, canceled).
- EmailLog: id, subscriber_id, campaign_id, message_id, status (sent, delivered, opened, bounced, complained).

2. CORE FUNCTIONALITY:
- Create an API to ingest subscribers and record events (e.g., POST /api/events with payload { email, event_name, metadata }).
- Implement a visual or JSON-based sequence builder where triggering an event schedules the first SequenceStep into BullMQ with a delay.
- Parse templates using MJML to ensure email client compatibility.
- Expose webhook endpoints to handle bounce, complaint, and open events from AWS SES / Resend, immediately setting matching subscriber status to 'bounced' or 'unsubscribed'.
- Include an unsubscribe handler that injects valid RFC-8058 List-Unsubscribe headers and direct one-click unsubscribe links in every output HTML.

3. FAILURE MODES & RESILIENCY:
- Rate limit outbound API requests to match third-party SMTP provider caps using BullMQ rate-limiting queues.
- Handle transient failures with exponential backoff retry policies up to 3 attempts.
- If a recipient hard bounces, automatically flag the subscriber record to prevent future send attempts.

4. OUT OF SCOPE:
- Do not build a custom SMTP MTA; rely entirely on AWS SES or Resend APIs.
- Do not build complex drag-and-drop canvas engines; use a simple block selector or raw HTML/MJML code editor.

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