Lucien Rivière
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  • SignalMapA mobile coverage map of Réunion and Mayotte: click anywhere and see the signal you would get from about 3,100 antennas.Projects
  • ZappyA network survival game in three programs: a C++ server, a 3D viewer and AI players, with LLM role-playing agents as a bonus.Projects
  • MaskGeneratorA small neural network that finds the road lines in a camera image, and a 2D raycast that turns them into lidar-like distances to drive a car.Projects
  • CockerA prototype platform to design an app as a graph of services and deploy it on Kubernetes: sandbox to try it, production to expose it.Projects
  • RaytracerA C++ raytracer where everything (shapes, materials, lights, output) is a plugin, sped up with a BVH, with a live preview window.Projects
  • RoboCarA small real car that drives itself around a track: a camera, a lidar-like view of the road lines, and a model that learned from human driving.Projects
  • CVRIETwo machine-learning studies using only scikit-learn: classifying chest X-rays, and grouping patient testimonies into symptom clusters with no labels.Projects
  • MyTeamsA Teams-like chat in Rust: a multi-client server, a command-line client, a text protocol written as an RFC, and data that survives restarts.Projects
  • ArcadeA retro game console in C++ where games and screens are plug-in libraries: swap the game or the graphics (terminal, SDL, SFML) while it runs.Projects
  • Masked DeliveryA game made in a weekend for Global Game Jam 2026: pick the right mask for each caller, then survive the drive, with penalties that stack up.Projects
  • 42shA Unix shell written in C, tcsh-style: pipes, logic operators, globbing, aliases, variables, line editing and history, checked against Bash.Projects
  • CorewarA virtual machine in C where small programs fight inside a shared memory, with my own warrior and a 3D viewer in the bonus.Projects
  • A-DasHboarDA dashboard of widgets from third-party services, built on JustBetterAuth, an authentication library written from scratch.Projects
  • StoneAnalysisA Python tool that finds the notes in a sound file with a hand-written Fourier transform, and hides secret messages inside the audio.Projects
  • PipetoA security audit of a nuclear-reactor console full of planted vulnerabilities: find them, rank them, patch them and prove the fixes with tests.Projects
  • TardisCleaning SNCF train-delay data, training a model to predict delays, and a Streamlit dashboard. The model barely beat guessing, and the page says so.Projects
  • InterStonarThrow a rock into a simulated universe: planets that attract each other and merge, or shapes it hits, found by stepping with signed distances.Projects
  • SensAIA small chat program for a local AI model that talks to it with plain HTTP, and can force its answers into a JSON shape you define.Projects
  • This portfolioThe site you are on: one set of data, six themes. Each theme is a different way to explore the same work, from a familiar page to a game.Projects
  • Portfolio toysSmall interactive toys from this portfolio: Fourier epicycles, a themed crossword and a bot that walks where you click.Projects
  • snake_pyA contribution to Infamous97440's repository: 2 commits from me.Projects
  • MyTopA clone of the Linux top command in C and ncurses: live CPU, memory, swap and per-process usage read from /proc.Projects
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Portfolio toys

Lucien Rivière

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About this project

Sep 2026 – now · Author · solo

Small interactive toys from this portfolio: Fourier epicycles, a themed crossword and a bot that walks where you click.

Things to poke at, built for this portfolio. Nothing here is on the exam.

Circles all the way down

Spinning circles riding circles copy any drawing. Draw anything and watch.

Drawing: the clapper. Draw your own right on it.

Crossword

Words from this theme's world. Hover or focus a word for its clue.

The helper

The little helper on the home page walks to wherever you click (clicks on links and buttons are left alone). It plans its route with A* over the page’s own elements, so it walks around things, never through them, and it can be switched off from the corner button.

Secrets

Finding your way around unlocks a few achievements. They are stored in your browser only, and listed at the bottom of the home page, under Contact.