Jonathan Petitcolas - Web developer and open-source aficionado

Running Claude Code in YOLO mode on a $10/month VPS, fully isolated at both the network and filesystem level.

Elastic Search excels in guessing types of its indexed fields.

Diving into machine learning requires some computation power, mainly brought by GPUs.

I have just updated my blog design to get a moderner look.

While browsing Stack Overflow, I generally browse one or two links from the sidebar 'Hot Network Questions'.

Jest is a Javascript testing framework published by Facebook.

Following an Internationalization tutorial is generally quite straightforward.

After being stuck for a few hours because of some Babel configuration issues in an isomorphic app, we finally discovered the Babel env property.

Docker is awesome.

GitHub supports HTTPs natively, but only for github.io domain names.

All Node.js developers have already used `npm` to install their favorite dependencies.

I recently needed to take a picture from a web browser using webcam.

I chose Jekyll to power this blog.

Thanks to marmelab, I attended to the AWS Summit last month in Paris.

I have been using Webpack for several months now, and I ended up to some more optimized solutions than the one already presented on this blog.

I got a few side-projects in production, a majority using Docker containers.

In this Three.js tutorial, we are going to see how to import a modeled mesh from Blender to our scene, animating it with some basic rotations.

Two weeks ago, we (at marmelab) attended the PHP Tour 2015, organized by AFUP in Luxembourg.

Webpack is really a great JavaScript bundler, allowing to turn messy and numerous JavaScript into a single minified and optimized script.

During more than a week, we worked hard to introduce some EcmaScript6, the future of JavaScript, to ng-admin.

Go is quite good for asynchronous tasks.

One of the best way to secure an API is JSON Web Tokens.

I am currently working on a Go library to parse Starcraft2 replay files.

Transitionning from Windows to Linux caused a few troubles.

Is it possible to develop generators in Golang?

I decided to go further with my Arduino: using a web interface to drive my board.

A few days ago, I received a brand new Arduino.

We just wrote a brand new visualization tool provideing a quick way to monitor your PHPUnit test suites.

I recently helped a contact of mine to develop her company website.

How to create a clickable SVG map without using obsolete Flash or bad-DX image maps?

I am sometimes asked how to simulate `marquee` tag in full CSS.

Let's discover awesome ThreeJS 3D library with a simple purpose: animating a rotating 3D cube.

Sublime Text 2 is an awesome text editor, a worthy successor to Notepad++.

I have decided to commit myself into two major professional changes this incoming new year: accepting a new job proposal and closing my own company.

I used WordPress during several years, since the first time I blogged.

Updating a WordPress blog with all its plug-ins may be very time-consuming, especially for those who maintain several blogs.