Can I vibe code Synder?

Build a Node.js TypeScript serverless application for automated e-commerce accounting sync. 1. Architecture: Create an Express/Fastify API server optimized for Cloudflare Workers or AWS Lambda. Implement webhook endpoint receivers for Shopify (`orders/create`, `refunds/create`) and Stripe (`payout.paid`, `charge.refunded`). Use PostgreSQL (via Drizzle ORM) for idempotent transaction logging and state tracking. 2. Core Functionality: Implement an integration engine for QuickBooks Online using official SDKs or raw REST calls with OAuth2 token auto-refresh. When a Shopify order webhook fires: parse gross line-item sales, applied discounts, shipping charges, and sales tax. Post a Sales Receipt to QuickBooks Online using mapped Chart of Accounts IDs (e.g., Sales Income, Sales Tax Payable, Stripe Clearing Account). When a Stripe payout webhook fires: fetch payout breakdown, record processing fees into a Merchant Fees expense account, and transfer net payout balance from Stripe Clearing Account to Checking Account. 3. Data Model: Define tables for `auth_tokens` (storing refresh tokens encryptedly), `transaction_logs` (storing source_id, target_id, idempotency_key, status, and JSON payload), and `account_mappings` (mapping e-commerce tax/fee keys to accounting COA IDs). 4. Failure Modes & Edge Cases: Enforce strict idempotency using source payload unique IDs to avoid duplicate accounting entries. Wrap accounting API calls in exponential backoff retries to handle rate limits. Handle multi-currency transactions by extracting explicit currency conversion rates from payment processor payloads and recording gain/loss on foreign exchange if required. If an API request fails permanently, flag the transaction as `FAILED_SYNC` in PostgreSQL and trigger an email alert via Resend API. Out of scope: Multi-tenant UI, QuickBooks Desktop SDK, manual CSV imports.

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