Two developers. Zero middlemen.
Our story
Ystura was born from a simple conviction: the best software is built by small teams who understand every line of code. Not by armies of developers passing tickets around. Not by layers of management diluting responsibility.
We are two: Mattheo who designs products and integrates AI (RAG, agents, open-source LLMs), Louis who builds applications and industrializes deployments (Vue, NestJS, Docker). Together, we cover the entire cycle — from first mockup to production, from data schema to encrypted backups.
This model has a decisive advantage: the person who understands your need is the one who writes the code. No salesperson rephrasing, no project manager relaying, no offshore developer who's never heard of your business. Two contacts, start to finish.
Our values
Clean, documented code
Every project ships with its source code, documentation and tests. You own everything, you understand everything.
Radical transparency
Detailed quotes, milestones validated together, weekly demos. You always know where your project stands and why.
Reversibility by design
Your code is yours, your data is exportable, your infrastructure is described as code. You can leave whenever you want.
Technical honesty
If AI isn't the right solution for your problem, we'll tell you. If a no-code tool is enough, we'll recommend it.
Meet the team
Mattheo R.
Full-stack developer & AI engineer
Mattheo designs AI products end to end — from the interface to autonomous agents. A 42 School graduate, he specializes in RAG, open-source LLMs (Mistral, Whisper) and self-hosting: his servers run on Hetzner in Germany, with GitLab, Coolify and Qdrant on his own machines. He prefers local models over American APIs whenever the project allows.
- Next.js & React
- RAG & AI agents
- NestJS & TypeScript
- Three.js & WebGL
- Python & FastAPI
Louis J.
Full-stack developer & DevOps
Louis brings 4+ years of freelance experience across varied clients — SaaS, ERP, marketplaces, scientific applications (IFPEN, SendUp, Skilder). A Vue.js/Nuxt and Angular specialist on the frontend, NestJS and Python on the backend, he industrializes deployments with Docker and CI/CD pipelines. Based in Lyon, he works remotely with teams across France.
- Vue.js & Nuxt
- Angular & React
- NestJS & Python
- PostgreSQL & Prisma
- Docker & CI/CD
How we work
A simple, transparent process: quantified audit, plan validated together, short iterations with weekly demos. No three-month tunnel, no delivery surprises.
Discover our five-phase method→Our toolbox
Modern, battle-tested technologies we use every day on our own projects.
- Next.js
- React
- Vue.js
- Nuxt
- Angular
- Ionic
- TypeScript
- Node.js
- NestJS
- Bun
- PostgreSQL
- Prisma
- TypeORM
- Docker
- Tailwind CSS
- Three.js
- GitLab CI
- Linux
Get In Touch
Got a project in mind? We'd love to hear about it.