Quentin Sastourné

Full-stack development of a "dead man's switch" iOS application that allows users to regularly signal their presence. If no signal is received, trusted contacts are automatically alerted by SMS.

Implementation of a Capacitor architecture (native iOS webview loading a Next.js app in production), with integration of APNs push notifications, a subscription system via StoreKit 2 (native Swift In-App Purchase), and a GitHub Actions CI/CD pipeline for TestFlight and App Store deployments.

Design and implementation of a comprehensive internal management system based on Notion, connected to automation tools (n8n), to structure and digitize the company's business processes.

Situation

The company lacked a centralized tool for:

- Site monitoring

- Intervention management

- Document production (work orders, reports, PDFs)

- Communication and action traceability

Processes were largely manual, scattered, and poorly automated.

Tâches

- Design of the Notion architecture (databases, relationships, permissions)

- Implementation of automation workflows

- Notion ↔ n8n ↔ Google Docs / Drive connection

- Definition of system usage and future evolutions

Actions

- Creation of a custom Notion workspace (sites, clients, interventions, documents)

- Implementation of Notion buttons to trigger automated workflows

- Automatic document generation (Google Docs → PDF) from Notion data

- Centralization of field information (photos, time spent, location, reports)

- Setup of a scalable foundation for future automations (signatures, notifications, reporting)

Results

- Complete centralization of business information

- Reduction of manual tasks and errors

- Time savings in managing interventions and documents

- Solid technical foundation for future process automation

As co-founder and lead developer of Kipoui, I am designing an innovative personalized nutrition coaching web application powered by artificial intelligence. The project combines technology, accessibility, and human support in the wellness sector.

Situation

The need: an intelligent, always-available tool offering motivating, supportive, and individualized nutritional guidance, in contrast to traditional restrictive diets. The goal was to provide quality coaching through an intuitive interface.

Tâches

- Technical architecture design.

- Full-stack platform development.

- AI integration (Vercel AI SDK + Cloudflare Workers AI).

- Responsive interface creation.

- SEO and performance optimization.

Actions

- Nuxt 3 + TypeScript + TailwindCSS stack: a modern, performant, and maintainable foundation.

- Integration of a custom LLM via Cloudflare Workers AI and Vercel AI SDK).

- RAG system: precise answers based on structured content.

- Contextual web search to enrich answers.

- Smooth and reassuring interface, designed with UX in mind.

- SEO optimization (meta tags, accessibility, sitemap…).

Résultats

- Launch of a stable and mobile-friendly platform.

- Very positive feedback on the motivating and empathetic AI.

- Generation of meal plans and emotional support tailored to user history.

- Scalable infrastructure, serverless (Cloudflare).