Eco Mode on — An alternative version of the site, optimised for slow connections and on-the-go browsing.

About me

I create eco-friendly websites with a real eco-design approach, not marketing greenwashing. Based in Rennes, I also work for clients in Quimper, Paris, Berlin or remotely.

My vision

The web's energy footprint keeps growing. I can't fix that on my own, but every site I build is as lightweight as possible without compromising user experience.

Technical skills

Frontend
Astro

A tool that creates fast websites easily found on Google, without forcing any particular technology.

Tailwind

System that quickly creates designs adapted to all screens, while keeping the site lightweight.

CSS Pro

Techniques for creating websites that adapt to all screens with smooth, lightweight animations.

TypeScript

An improved version of JavaScript that helps prevent bugs and makes teamwork easier.

HTMX

A small tool that makes web pages interactive without making the site heavier.

Backend
Astro + Workers

Astro builds pages and creates routes for dormant agents (Workers) that wake up only when needed. More economical than a permanent server.

Supabase

A service that stores your data and manages user logins, without installing or maintaining a server.

Phoenix (Elixir)

A complete server you fully control. Excellent for real-time features and thousands of simultaneous visitors.

Databases
PostgreSQL

A reliable and versatile database that stores your information in an organized and secure way.

PostgREST

A tool that provides easy and secure access to stored data without writing a lot of code.

MongoDB

A flexible database that easily adapts to changes and stores various information types.

Tools
Git

A system that allows multiple people to work on the same project without conflict.

Docker

A tool that ensures the site will work the same way everywhere.

Lighthouse

A tool that analyzes your site and suggests improvements to make it faster and greener.

Methodologies
Accessibilité
Performance & Éco-conception
UX/UI

Designing sites that are easy and pleasant to use, genuinely meeting visitor needs.

Professional experience

Freelance web developer

2025 - Present

Independent

I design websites for a range of clients, with one rule I set for myself: every site must be fast, lightweight, and easy for the client to use independently.

Webmaster

2024 - 2025

Objethèque de Cornouaille

Built and maintained the website for this Breton object-lending association, on a voluntary basis. A project that aligns well with my values: useful, simple, local.

Education

TP développeur web et web mobile

2025

Studi

A certified program that let me consolidate everything I had learned. My final project was <a href="/en/esport" class="text-link">Esportify</a>.

The Odin Project

2023 - 2024

Auto-formation

A free, open-source and very thorough curriculum to learn web development from scratch. <a href="https://www.theodinproject.com" class="text-link">See the curriculum</a>.

Veille technologique

2022 - Présent

Sources diverses

YouTube, podcasts, tech newsletters — always learning, and being comfortable in English means I get the freshest content first.

Have a project in mind?

Feel free to contact me for a free quote with no obligation.

Let's talk

+33 7 81 33 97 68

josshanel@gmail.com