Team
Arkef
Project Concept
Design and validate complex software architectures with spec-driven nodes in a visual graph database - catch architectural flaws before writing code.
Entry
Status: Submitted
Last saved: December 10 at 3:24 PM CET
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Jean-Michel ALANDOU Team Lead RSVP Approved
CTO & Co-Founder at Devadory
Jean-Michel ALANDOU (Lead) — Full-Stack Development & Architecture
Solo developer responsible for the complete end-to-end implementation:
Neo4j Integration (Sponsor Tool):
Designed and implemented the complete GraphRAG architecture with Neo4j Aura
Created the hierarchical knowledge graph schema (Journey → Wireframe → Page → Section → Component)
Built the neo4j-repository.ts abstraction layer with Cypher queries for context retrieval
Implemented relationship types (HAS_PAGE, HAS_SECTION, LEADS_TO, DEPENDS_ON) for contextual reasoning
Developed the /api/neo4j/context API for breadcrumb and inherited context retrieval
Anthropic Claude Integration (Sponsor Tool):
Integrated Claude Haiku 4.5 via @ai-sdk/anthropic for AI-powered generation
Implemented streaming text generation using Vercel AI SDK for real-time wireframe creation
Designed system prompts for contextual wireframe and user journey generation
Built SSE (Server-Sent Events) streaming endpoints for live code preview
Scalingo Deployment (Sponsor Tool):
Configured production-ready deployment with Procfile
Set up environment-based Neo4j Aura connection
Implemented Parse Server integration for persistent data storage
Frontend & DX:
Built interactive journey visualization with ReactFlow
Created the Brain Modules system for per-node AI chat and debugging
Developed the complete Next.js 15 application with TypeScript
Jean-Michel Alandou is a Lead Developer and Co-founder at Devadory, a Paris-based startup specializing in scalable SaaS tools and QR code solutions to enhance customer engagement. Originally from Paris, France, he brings over 10 years of full-stack development experience from roles at Talentsoft (10 years as a development engineer), Universal Voucher (5.5 years as CTO), and FRAAM3 (Web3 Builder). Holding a Master's degree in Artificial Intelligence from Université de Cergy-Pontoise (M2 Systèmes intelligents et communicants), he excels in building innovative applications blending AI, blockchain, and automation, including award-winning projects in generative AI hackathons.
Jean-Michel focuses on SaaS automation, generative AI (GraphRAG/Neo4j hackathons, AI agents), Web3/blockchain, content generation (AI video/animation), hackathons, and no-code/low-code entrepreneurship for solopreneurs (reusable building blocks). He explores knowledge graphs, agent orchestration, and GPU/ComfyUI optimization, aligning with projects like Spaagl.
Devadory: Co-founder and CTO since May 2023, developing QR code solutions and QRGuideBook with AI agents for rental check-in and concierge services.
Universal Voucher: CTO from 2018-2023, SMS/Email/Blockchain restaurant voucher platform (2nd place Air France hackathon 2016 using AngularJS, Ionic, Parse, Node.js, Ethereum).
Eliluce (Bolt.new hackathon - World's Largest Hackathon): React Native/Supabase/Algorand app animating creature drawings with generative AI (ElevenLabs audio, Suno music, Ru