Building a Local Voice-to-Text and Rewriting Assistant on Linux
This article comes from a frustration I had with Discord Web. I didn't have the possibility to directly send a voice message.…
journalA Look Back at My COVID-Era Home Gym
During my teenage years, I was quite into weightlifting. When the COVID-19 pandemic hit, I decided to buy some equipment and build…
journalHow I Almost Fell for a Leboncoin Phishing Scam
Yesterday, I was uploading listings for some fitness equipment I bought during the COVID period on the French equivalent of Craigslist (not…
mathsThe Trick Is in the Representation
This article is about several mathematical puzzles which will sharpen your reasoning. There will be several well-known ones, such as the Monty…
linuxPacman, APT and dpkg: Under the Hood
Package managers are often reduced to a few commands: install, update, remove. But behind those commands sits a much larger system involving…
linuxInstalling Gentoo the Hard Way
In this article, we'll proceed to install Gentoo. This article follows the story of manually installing Linux distros which begins here [here]…
linuxInstalling OpenBSD the Hard Way
In this article, we'll go through the manual installation of OpenBSD and see the differences and similarities with Linux. The setup We'll…
linuxManually Installing Arch and Void Linux on the Same Disk with UEFI and GRUB
In this article, we'll deep dive into the manual installation of multi-distrributions in one disk. The Setup We'll install Arch And Void…
linuxI Just Wanted Wi-Fi to Work on Linux
About a week ago, I needed to set up a laptop for my mum to use while working remotely. The initial plan…
software-computational-architectureWhere R Data Pipelines Pay Their Cost: data.table, dplyr, fread, readr, and vroom
My previous article was somewhat polarizing. Most readers responded positively, but some disagreed with the benchmarking methodology I used. That criticism is…
software-computational-architecturedata.table VS dplyr in a data pipeline
Recently, I wanted to create an analytical dashboard for the visits on this blog, entirely server-side. This means reading the NGINX /var/log/statix.log…
journalA CV, a Phone Number, and a Data Leak
The other day, I was searching for the name of a friend on Google, and his personal Curriculum Vitae appeared as the…
journalMy Overengineered YouTube Thumbnail Generator
Following up on my YouTube channel creation from the previous article, on Mon. 25 May 2026 14:02:06 CEST, I wanted to write…
journalA Practical Linux Setup for Recording Technical Videos
On Sun May 17 21:35:37 CEST 2026, I decided it was time to start a YouTube channel to promote my articles. Here…
software-computational-architectureThe Cartesian Product Disaster Tour: Haskell, C, and 25GB of Allocations
In this article, we’ll explore something that looks innocent: computing the cartesian product of several lists. In Haskell, it is almost boring:…
software-computational-architectureWhy Parsers were invented ?
A lot of text-processing tools can get surprisingly far without a real parser. For simple patterns, tools like sed, awk, or small…
blogrollBlogs that worth a bookmark
Gwern.net A huge collection of long-form essays by Gwern Branwen on AI, statistics, psychology, technology, science, economics and plenty of other rabbit…
journalJournal - April 2026
Days 19 19 First Entry, this is a test. ♥ Support
latexDoom in LaTeX (+Bash)
This article is a part of my full LaTeX guide here article Here some captions of the game: How did i create…
latexTraversing a Tree in pure LaTeX
This article is a part of my full LaTeX guide here article At the end of the article, you'll be able to…
latexDissecting LaTeX: Revenge, Four Years Later
When I was a chemist, I wrote my internship report in LaTeX. It was at first a pain in the ass: -->…
software-computational-architectureSAM, the 'other' SED from the 80s
Prerequisites This article will reference SED syntax that is described here: sed This was also vastly ispired by this comment (user: piekvorst)…
linuxAWK: The Small Language That Quietly Became a Data Engine
There is a moment every engineer hits. You're staring at a text file-logs, CSVs, metrics, something messy-and you think: "I just need…
linuxSed, a powerfull mini-language from the 70s
There's a moment when using sed stops feeling like typing weird incantations… and starts feeling like you're programming a living stream of…
system-designBash Arrays: From First Steps to Real-World Mastery
Bash arrays aren't just containers, they're a way to control how data flows through the shell. This guide builds from zero to…
recreational-programmingBuilding a ChatGPT-like CLI in Bash: a journey through pipes, JSON, streaming, and shell weirdness
There is something deeply satisfying about building a serious tool with primitive Unix bricks. The mentioned in this article comes from: repo…
journalStatix, llama.cpp, and a Night of Autonomous Blogging
This article is about this repo: autoBlog There is a particular kind of joy in software engineering that does not come from…
defaultThe Archaeology of a dead .OVA
"It should be easy to download." Famous last words. The Premise There exists (or existed) a certain .ova file. .ova is a…
software-computational-architectureHow Modern Browsers Render the Web: A Deep Technical Journey
From HTML bytes to GPU pixels — the complete architecture of a modern browser rendering engine. Introduction: The Browser as a Game…
system-designDebugging a “Slow VPS” That Wasn’t Slow
My VPS suddenly felt extremely slow: pages taking 3–5 seconds TLS handshake hanging random spikes in latency First instinct: server issue. Reality:…
software-computational-architectureFrom Backtracking to Factorial Coordinates: Understanding Permutations Deeply
Most developers learn permutation generation through recursion and swapping. It works, it's elegant… but it often feels a bit magical. This article…
software-computational-architectureBinary Operations: AND, OR, XOR, NOR - and Their Deep Relationships
Binary operations are the foundation of computation. At the lowest level, everything reduces to simple operations on bits: true (1) and false…
software-computational-architectureJava Deep Dive: Architecture, Memory, OOP & Modern Features
A comprehensive technical reference — from JVM internals to streams, lambdas, and the philosophy behind Java's design choices. Table of Contents Introduction…
system-designStatix: A Static Engine That Behaves Like a Dependency Graph
Most static site generators rebuild everything. Statix doesn’t. It rebuilds exactly what changed — nothing more, nothing less. This article is a…
system-designGo Joining Errors - Learn with Examples
In Go (since Go 1.20), errors.Join lets you combine multiple errors into a single error while still preserving each individual error inside…
software-computational-architectureOpenTelemetry in Go, finally explained: traces, metrics, logs, propagation & middleware
I spent the day digging into OpenTelemetry in Go and, honestly, a lot of things that look magical at first finally clicked.…
system-designStatix - I Built My Own Blog Engine (Because I Refuse to Negotiate with Markdown Toolchains).
Let me clarify something immediately. First the repo is here lol: Statix, and second This is not a “framework”. This is not…
functional-programmingjq as a Stream Calculus and Tree Algebra
A Deep Semantic and Operational Mini-Book This is not documentation. This is not a tutorial. This is a semantic excavation. We will…
linuxLogrotate for Nginx: Understanding missingok, notifempty, sharedscripts, prerotate, postrotate (and switching to size-based rotation)
If you run Nginx in production, your access and error logs can grow fast. On most Linux systems, log rotation is handled…
system-designStreaming a MariaDB Dump from Go: Pipes, Syscalls, Backpressure and the Runtime
We start from a very simple handler: spawn mysqldump, capture its stdout, and stream it directly to the browser. No intermediate file.…
system-designDispatch Responsibility: C++ Compile-Time Power vs Go Runtime Reflection
When comparing C++ and Go, one of the most interesting differences is not syntax, not performance, and not even generics — it…
defaultDesigning a Column-Major Matrix Class with Row-Major Multiplication Optimizations (CPU & GPU)
When I designed my C++ Matrix<T> class for Fulgurance, I deliberately chose a column-major memory layout (Fortran/Eigen style). It fits linear algebra…
defaultRebuilding the LU Decomposition and Benchmarking It Against My Own Determinant Algorithms
When I first started playing with determinant algorithms in C++, I wanted to really understand what happens behind Eigen’s .determinant() call. So…
defaultBuilding a New Determinant Engine - An Iterative Combinatorial Approach
One morning, I decided to compute a determinant from scratch — no recursion, no Gaussian elimination, no library shortcuts. I wanted to…
defaultExploring the Power of Metaprogramming in Rust
Metaprogramming in Rust: Exploring macro_rules! Power Rust offers one of the most expressive and hygienic metaprogramming systems in modern languages. Through declarative…
default📊 Building a Flexible Access Log Analyzer in R
In this tutorial, we’ll walk through the design and implementation of a small but powerful R script that analyzes web server access…
functional-programmingThe Knight’s Tour in Haskell — From Brute Force to Warnsdorff’s Heuristic
One of the most fascinating and ancient problems in recreational mathematics is the Knight’s Tour — the challenge of moving a chess…
functional-programmingChecking Graph Bipartiteness in Haskell
One of the most elegant problems in graph theory is determining whether a given graph is bipartite. A bipartite graph is one…
functional-programmingSolving the Eight Queens Problem in Haskell
The Eight Queens Problem is one of the most famous challenges in computer science and mathematics. The goal is simple to state…
functional-programmingExploring Reachability in Directed Graphs with Haskell
Exploring Reachability in Directed Graphs with Haskell Graphs are a natural way to represent systems of connections — from flight networks to…
functional-programmingHow Do They Display Trees — Three Layout Algorithms in Haskell
When you visualize data structures in a GUI — such as decision trees, syntax trees, or even neural networks — one key…
functional-programmingConstructing All Spanning Trees in Haskell (Problem 83)
In graph theory, a spanning tree of a connected graph is a subgraph that includes all the nodes of the original graph,…
functional-programmingGraph Isomorphism in Haskell (Problem 85)
Graph isomorphism is one of the classic challenges in graph theory and computer science. It involves determining whether two graphs have the…
functional-programmingIntroduction to Graph Theory in Haskell
Graph theory is one of the most fascinating areas of computer science and mathematics, forming the foundation for countless real-world applications: from…
functional-programmingImplementing Huffman Encoding in Haskell
Huffman encoding is one of the foundational algorithms in data compression — elegant, efficient, and entirely based on simple mathematical principles. It…
defaultThe Goldbach Conjecture and Its Recursive Implementation in Haskell
The Goldbach Conjecture is one of the oldest unsolved problems in mathematics. It states that every even integer greater than 2 can…
functional-programmingUnderstanding Recursion Through Combinations, Permutations, and Trees in Haskell
Recursion often feels like a mysterious concept when you first encounter it — until you realize that it’s not about doing something…
functional-programmingFinding the Optimal Path in Haskell: A Recursive Exploration
I will explain from my point of view the solution to the following problem here, we explore a recursive approach to solving…
functional-programmingUnderstanding the Haskell Type System: From Typeclasses to Data Structures
In this tutorial — inspired by my video “Structure de données et système de types en Haskell” — we dive into the…
functional-programmingUnderstanding Parenthesis Tokenization in Haskell
Context Before building a full arithmetic calculator in Haskell, there was one key challenge I needed to solve first: understanding and tokenizing…
functional-programmingBuilding a Tiny Reverse Polish Notation (RPN) Calculator in Haskell
In this project, we’ll build a small expression evaluator using Reverse Polish Notation (RPN) — also called postfix notation. The idea is…
functional-programmingLearning Haskell with Weird Goals
Sometimes, the best way to learn a language is by using a simple, even slightly “weird” goal as an excuse to explore…
functional-programmingBrute-forcing Pythagorean Triples with Haskell List Comprehensions (up to 100)
We want all integer solutions (a,b,c) to the equation a^2 = b^2 + c^2 with 0 < a < 100. This is…
recreational-programmingTurning Blog HTML into RSS, the Low-Level Way (in C++)
If you publish long-form posts on the web, you’ve probably felt the friction of keeping your RSS feed in sync. I did…
recreational-programmingA New Way to Explore Your System on Linux
On Linux, productivity often comes from small but powerful tools. dmenu and rofi are great examples: minimalist application launchers that make your…
recreational-programmingAutomating YouTube Video Imports into My Website with One Magic Bash Line
Over the past months I’ve been downloading my own YouTube videos with yt-dlp. It’s a fantastic tool for archiving, and I’ve built…
recreational-programmingBuilding My Own Parser in R - A Custom Syntax Experiment
This was one of my older projects, a little bit eccentric but very educational. I wanted to see if I could design…
system-designBuilding InFoEnd: An End-to-End Encrypted Chatroom in Go
InFoEnd is my first experiment with building a secure chatroom application in Go. The goal: create a real-time messaging system where messages…
defaultReimplementing diff in C++: A Minimalist Approach
Why Rebuild Something That Already Exists? The diff command is one of the cornerstones of the GNU/Linux ecosystem. It’s simple in appearance,…
defaultAutomatic Documentation for Any Codebase
When working with R, I loved how Roxygen lets you generate clean documentation directly from comments in your source code. But I…
software-computational-architectureReimplementing Cross-Validation for KNN in R (from Scratch)
After reimplementing K-Nearest Neighbors (KNN) from scratch, I wanted to take things a step further: build a cross-validation system entirely in base…
software-computational-architectureReimplementing K-Nearest Neighbors (KNN) from Scratch in R
As part of my exploration of machine learning fundamentals, I decided to reimplement classic algorithms from scratch instead of relying directly on…
software-computational-architectureOptimizing the Exponential Function in Cherubin
Cherubin is my C++ library for computing very large numbers represented as strings. One of the hardest functions to implement efficiently in…
software-computational-architectureReimplementing the Cauchy Distribution in Fulgurance (C++ Statistics Library)
Introduction Fulgurance is my C++ statistics library where I reimplemented several probability distributions from scratch, including the Cauchy distribution. The goal of…
software-computational-architectureCheating a Bit: Approximating atan, arccos, and arcsin in the Cherubin Library
This project is part of my Cherubin library — a C++ library for computing very large numbers represented as strings. Because Cherubin…
recreational-programmingSoundCutr: An Early Attempt at Voice Extraction in Audio Files
Think of this article as a small time capsule of my programming journey — proof that everyone starts somewhere, and that projects…
defaultImplementing DataFrames in C++: A Custom Approach for High-Performance Data Manipulation
Introduction When working with data, Python and Pandas dominate the landscape. They provide an intuitive way to load, transform, and analyze datasets.…
functional-programmingHow Haskell (and the Functional Mindset) Rewired the Way I Think About Code
I didn’t set out to “become a functional programmer.” I stumbled into Haskell after years of imperative and OOP work, mostly focused…
system-designBuilding an HTTP Server in Rust Without a Framework
All code excerpts below are highlights of the full implementation. See the complete source on GitHub: julienlargetpiet/HTTP_Server. Why write your own server?…
system-designBuilding an Encrypted Terminal Chatroom in C - A Personal Engineering Story
I built a tiny chatroom that runs entirely in the terminal, written in C, with all messages encrypted. This article is my…
recreational-programmingValidating JSON Syntax: A Conceptual Approach
In modern systems, JSON has become the de facto standard for exchanging structured data. Its popularity comes from its simplicity and readability.…
software-computational-architectureEmulating Binary-Level Operations and Number Representations
At the heart of every computer lies a simple truth: everything is binary. Whether you are working with integers, floating-point numbers, or…
defaultEditing My YouTube Videos the Weird Way: With Nothing but ffmpeg
Most people edit their YouTube videos with slick GUIs: Premiere, DaVinci Resolve, Final Cut Pro, even OBS + Shotcut for the open-source…
software-computational-architectureUnsolved problem !!!
Statement and motivation (inspired from pb.93 of 99 Problems in Haskell) This problem originates from the motivation to find all possible results…
recreational-programmingCustom Encoding For Integers
Ok, so i had to encode a structured data, a positive integer in this case representing the space for the server to…
recreational-programmingAuthentication Without Cookies
Recently, i've been programming a simple cloud webserver in Go. And of course, it is unavoidable when including accounts, how to make…
system-designSimple Compression Algorithm
I've just finished implementing a simple text compression algorithm in C++, i will talk about its implementation in this article. The programm…
defaultImplement Core Operations
I have just finished developing a library for manipulating numbers so large and/or precise that no conventional datatype can encode them. You…
recreational-programmingSymetric Encryption Protocol
How i've implemented an original symetric encryption protocol with combinatorial mathematics repo Or download on this website as zip: zip It starts…
recreational-programmingA ReGex Dialect
In this article i'm gonna present you a method to implement RegEx. Link: repo Or on this website: zip Before the explanation,…
recreational-programmingAn Original Transformation Engine
In this article i will introduce you, in short, how i've implemented transformation engine XSLT like from scratch (with C++). repo Or…