Can I vibecode Flodesk?

Build a detailed, self-hosted clone inspired by Flodesk focusing on its core email marketing capabilities. Use exactly this stack: Next.js 15 (App Router), TypeScript, Tailwind CSS, PostgreSQL, and Drizzle ORM.

**DATA MODEL & SCHEMA SPECIFICS**
Implement the following core entities in PostgreSQL with Drizzle ORM:
- `users`: `id` (UUID), `email` (string), `name` (string), `created_at` (timestamp), `settings` (JSON).
- `campaigns`: `id`, `user_id`, `subject` (string), `html_content` (text), `status` (enum: draft, scheduled, sent), `send_at` (timestamp).
- `subscribers`: `id`, `user_id`, `email` (string), `first_name`, `last_name`, `status` (enum: active, unsubscribed, bounced).
- `campaign_analytics`: `id`, `campaign_id`, `subscriber_id`, `opened_at`, `clicked_at`.
Ensure all relations have cascading deletes where appropriate.

**SCREENS & UX PATTERNS**
1. **Dashboard (`/dashboard`)**: Use a masonry layout for quick stats (cards with metrics like 'Total Subscribers', 'Avg Open Rate'). Include a sparkline chart for recent signups.
2. **Email Builder (`/builder/[id]`)**: A split-pane layout with a left sidebar for block types (text, image, button) and a right canvas for live preview. Implement visual drag-and-drop.
3. **Subscriber List (`/audience`)**: A data table with column sorting, server-side pagination, and row selection for bulk actions.
4. **Settings Panel (`/settings`)**: A slide-over drawer for configuring SMTP credentials and sender profiles.

**STEP-BY-STEP USER JOURNEYS**
- **Journey 1 (Onboarding)**: User logs in, lands on an empty state dashboard with a prominent "Create Campaign" button.
- **Journey 2 (Creation)**: User clicks "Create", enters a subject, and is redirected to the Email Builder. They design the email visually, edit inline text, and hit "Save Draft".
- **Journey 3 (Distribution)**: User selects an audience segment, configures their custom SMTP settings in a modal, and clicks "Send Now". The campaign status updates to 'sent'.
- **Journey 4 (Analytics)**: User visits the Analytics tab to view open/click metrics fetched via Server Actions, displaying time-series data.

**TECHNICAL SPECIFICATIONS & PROTOCOLS**
- Use Server Actions for all form submissions and data mutations.
- Implement optimistic UI updates using React's `useOptimistic` hook.
- Data export functionality: Provide a utility to generate a standard CSV containing all subscribers.
- External Integrations: Standard SMTP protocol integration using Nodemailer for sending outgoing campaigns. Generate clean, responsive HTML using a library like `mjml`.

Start from an empty folder, create the complete project, and ensure the default mode is single-user and private. Do not add analytics or telemetry. Put all secrets in `.env`. Validate untrusted input with Zod. Write unit tests for the core logic and one end-to-end smoke test using Playwright.