Dev.to
7/8/2026

I built a WhatsApp-to-book pipeline with Make.com, OpenAI and Lulu.com — here's the full stack
Short summary
A founder details the complete no-backend pipeline behind Minha Historia, a service that turns elderly parents' WhatsApp voice notes into hardcover memoir books. The stack uses Make.com for orchestration (10 scenarios), Whisper for transcription, GPT-4o for grammar polishing, Cloudflare Workers for PDF generation, and Lulu.com for print-on-demand. The author expanded from Portugal to France in two weeks by translating only questions and emails, proving the architecture is market-agnostic.
- •Full stack: WhatsApp Business API → Whisper transcription → GPT-4o editing → Cloudflare Worker PDF → Lulu.com print-on-demand, orchestrated by 10 Make.com scenarios
- •Parent UX is zero-friction: no app, no login — just WhatsApp voice notes; QR codes in each chapter link back to original audio on Cloudflare R2
- •Market-agnostic architecture: French clone took 2 weeks, only translating 36 questions and email sequences; pricing at 99€ (PT) and 114€ (FR) one-time
Generated with AI, which can make mistakes.
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