The central question this article answers: How can engineering teams and solo developers build a desktop-native AI tool that transforms raw product photos into platform-compliant, conversion-optimized e-commerce detail pages without requiring design expertise? BananaMall is an AI-native desktop application that compresses an entire product-page production pipeline—visual analysis, copywriting, batch image generation, mobile preview, and export—into a single 10MB window. Built with Tauri v2, React 18, TypeScript, and Google Gemini, it demonstrates how modern desktop frameworks can deliver cloud-grade AI capabilities while keeping sensitive product data firmly local. This article dissects the architecture, workflow, and engineering trade-offs that make it possible. …