Can I vibe code Duoplane?

Build an open-source alternative to Duoplane using Next.js (App Router), Supabase (Database & Auth), and Tailwind CSS for order management and dropship vendor automation.

1. DATA MODEL:
- vendors (id, name, contact_email, integration_type [email, webhook, sftp], api_endpoint, created_at)
- product_vendor_mappings (id, sku, vendor_id, vendor_sku, wholesale_cost, lead_time_days)
- purchase_orders (id, order_id, vendor_id, status [pending, sent, fulfilled, partial, cancelled], total_cost, tracking_number, carrier, created_at)
- purchase_order_items (id, purchase_order_id, product_vendor_mapping_id, quantity, unit_cost)

2. CORE FUNCTIONALITY:
- Webhook Ingestion Engine: Webhook handler listening for Shopify/WooCommerce order creation. Parse line items, look up corresponding vendor using product_vendor_mappings, and split the customer order into multiple purchase_orders grouped by vendor_id.
- Vendor Dispatch Engine: If vendor integration_type is 'email', render a PDF Purchase Order using React-PDF and dispatch it to vendor.contact_email using Resend API. If 'webhook', send JSON payload.
- Vendor Dashboard: Public authenticated portal where vendors log in to view assigned purchase_orders, mark orders as shipped, and input tracking numbers + carrier.
- Fulfillment Sync: When tracking details are saved in the portal, trigger a back-sync call to the primary e-commerce store API to mark the specific line items as fulfilled with the corresponding tracking links.

3. FAILURE HANDLING & LOGISTICS:
- If an order contains a SKU without a vendor mapping, flag purchase order status as 'unassigned' and notify admin via Discord/Slack webhook.
- Retry logic for API/webhook transmission failures with exponential backoff.

4. OUT OF SCOPE:
- Enterprise EDI X12 parsing.
- Automated invoice payment processing.
- Multi-currency conversions.

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