Can I vibe code Constant Contact?

Build a lightweight self-hosted email and SMS marketing automation system to replace Constant Contact. Stack: Next.js (App Router), PostgreSQL (Prisma), BullMQ (Redis) for job queues, Resend API for email delivery, and Twilio API for SMS. 1. Data Schema: Create models for Contacts (email, phone, status, tags, metadata), ContactLists (many-to-many with Contacts), Campaigns (subject, content_html, type, scheduled_at, status), Automations (trigger_event, delay_seconds, template_id), and MessageLogs (message_id, contact_id, provider_id, status: sent/opened/clicked/bounced/unsubscribed). 2. Email Builder & Rendering: Implement React Email components for rendering transactional and broadcast emails. Build a simple UI dashboard to create campaigns, assign target lists, and schedule dispatch. 3. Queue & Delivery Logic: Use BullMQ workers to process outgoing campaign sends in batches. Include automatic rate-limiting and retry logic with exponential backoff. Add standard 1-click unsubscribe headers (List-Unsubscribe: <mailto:...>, <https://...>) to every email body. 4. Webhook Engine: Expose public API endpoints for receiving deliverability webhooks from Resend and Twilio (processing delivered, bounced, opened, clicked, unsubscribed events) to automatically update MessageLogs and Contact statuses. 5. Out of Scope: Direct SMTP server execution, automated IP warm-up tools, and complex multi-path visual flowchart builders.

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