Thomas Landspurg

IoT Blockchain, ConnectedStuff . CTO

[Thomas Landspurg @tomsoft]

@Fedex : vous ne sonnez pas, et impossible de modifier les préférences de livraison, personne ne répond....

[Thomas Landspurg @tomsoft]

@mben_dev Après une clé non critique peut se retrouver aussi stylé sentry ou autre c’est pas forcément dramatique

[Thomas Landspurg @tomsoft]

@lonnibesancon C’est déjà le cas avec internet depuis 20 ans. Si internet est down vous ne faite pas grand chose pour la plupart, se moquer des utilisateurs sur l’ia me paraît un peu déplacé

[Thomas Landspurg @tomsoft]

@lucile_toulouse @arnaudducouret En fait tu peut payer aussi des tas de choses directement par Apple Pay sans avoir besoin à chaque fois de rentrer ton numéro de cb.

[Thomas Landspurg @tomsoft]

@27Normandi78584 @AntoninAtger Une pompe à chaleur pour se chauffer (non réversible) c’est le même ordre de grandeur et en plus c’est subventionné par l’état

[Spencer Baggins @bigaiguy]

A French engineer who lives quietly in Paris has spent 30 years writing software that the entire internet now runs on without knowing his name.

He wrote the code that streams every YouTube video, every Netflix show, every TikTok clip. He wrote the code that runs the virtual servers underneath AWS, Google Cloud, and Microsoft Azure. He calculated more digits of pi than anyone in history. He has no Twitter. He has no marketing. He just keeps shipping.

His name is Fabrice Bellard.

Here is the story, because almost nobody outside the systems programming world knows what one man has built.

Fabrice was born in 1972 in Grenoble, France. He studied at École Polytechnique, the top French engineering school. He never went to Silicon Valley. He never built a startup empire. He just wrote code.

In 2000 he started a project called FFmpeg, an open-source multimedia framework for encoding, decoding, and streaming video. He was 28. The project did one thing nobody else had done well. It handled every video and audio format that existed, in one library, on every operating system. He led it himself for years.

Today FFmpeg is the invisible engine of the internet. YouTube uses it. Netflix uses it. VLC uses it. Chrome and Firefox use parts of it. Every Android phone, every iPhone, every smart TV, every video editing tool you have ever touched runs FFmpeg somewhere underneath. If you have watched a video on a screen in the last 20 years, Fabrice's code processed it.

He was not done.

In 2003 he started QEMU, a machine emulator and virtualizer. He wrote it solo until version 0.7.1 in 2005. QEMU lets you run any operating system on any other operating system. It became the foundation of modern virtualization. KVM, the Linux kernel hypervisor, runs on top of QEMU. Every major cloud provider, AWS, Google Cloud, Microsoft Azure, IBM Cloud, runs virtual machines on infrastructure built around it. The Quick Emulator is the most cited piece of cloud infrastructure code on Earth.

He kept going.

In 2001 he won the International Obfuscated C Code Contest with a small C compiler that grew into TCC, the Tiny C Compiler. TCC can compile and boot a Linux kernel from source in under 15 seconds. In 2004 he calculated the most digits of pi ever computed at the time, using a personal desktop computer and an algorithm he derived himself called Bellard's formula. In 2011 he wrote a complete PC emulator in pure JavaScript that runs Linux in your browser, a project called JSLinux that engineers still cannot believe is real.

In 2019 he released QuickJS, a small but complete JavaScript engine that fits where V8 cannot. In 2021 he released NNCP, a neural network based lossless data compressor that immediately took the lead on the Large Text Compression Benchmark.

Then he turned his attention to large language models. He built TextSynth Server, a web server with a REST API for running LLMs locally. He released ts_zip and ts_sms, compression utilities that use language models to compress text and short messages at ratios traditional algorithms cannot reach. He released TSAC, a very low bitrate audio compression system. In December 2025 he released Micro QuickJS, a new JavaScript engine for microcontrollers, separate from QuickJS, designed for environments with almost no memory.

Fabrice co-founded a telecom company called Amarisoft in 2012, where he serves as CTO. Amarisoft builds 4G and 5G base station software used by carriers and labs around the world. He has been running it for over a decade while continuing to ship personal projects from his own home page at bellard dot org

He has no Twitter. He has no Instagram. He gives almost no interviews. His personal website is a flat list of projects with no styling, no fonts, no marketing copy. Just titles and links.

A quiet French engineer who never moved to Silicon Valley wrote the code that quietly runs the internet.

He is still shipping.

[Thomas Landspurg @tomsoft]

@MolotovTV -> maj catastrophique, j’étais un utilisateur fidèle je bascule sur l’app @canalplus , moins cher et mieux foutu…. Naufrage industriel incompréhensible , à chaque maj on perd des fonctionnalités

[Thomas Landspurg @tomsoft]

@apter_fr @Fabien_Mikol Cela à toujours été le cas, notamment dans les startups. La seule diféerence et que la ou il fallait 10 personnes et 1m€, 2 et 50k€ suffisent

[Thomas Landspurg @tomsoft]

Un petit essai d'un jeu que j'adore, Jump, vibe codé https://t.co/magf2e3E7c

[Thomas Landspurg @tomsoft]

@ArbieuL Je me suis amusé à refaire hier un projet qui m'avait pris 6 mois de traçabilité grace à la blockchain: un seul prompt, backend node, blockchain polygon, frontend vue.js + appli flutter. 2 heures, et des patterns plus que corrects + design. Le game est plié

[Vincent Champain @vchampain]

Better than greetings cards : a card that ACTUALLY greets you (see video after 1:30).

If you want one against a modest gift to your local food bank, message me.
Happy new year ! #esp32

[Thomas Landspurg @tomsoft]

@fbrunel Poor man fixing

[Thomas Landspurg @tomsoft]

@anthony_le33667 @e_lonorele C’est illegal de payer le vernier liter avec la caution

[Thomas Landspurg @tomsoft]

@LaBanquePostale Hey, la banque postale: 500€ de frais pour la cloture d'un compte d'une personne décédée, c'est normal? (cliente depuis 60 ans au moins)... @60millions ?

[Thomas Landspurg @tomsoft]

I just published How AI Tools Like Cursor Are Revolutionizing Code Generation https://t.co/n37xG3SyqS

[Thomas Landspurg @tomsoft]

@JCheerack @LeBigChatain666 @annechris_00 @ChloeMorin2 @EliseLucet Pour avoir vu quelques émissions ou j’avais une bonne connaissance du sujet, il est évident que c’est toujours des procès à charge ou tout est fait pour prendre au piège les intéressés sans qu’ils aient le droit de dire quoi que ce soit.

[Thomas Landspurg @tomsoft]

@jeffpillou Donc petite question: quelles sont les sources de données de ton application?

[Thomas Landspurg @tomsoft]

@jeffpillou Recompensé par l'Oseo ... Beaucoup de contraintes technique, mais probablement trop tôt pour l'époque, et surtout des sources d'informations géolocalisé trop peut nombreuses (la on voyait wikimapia) https://t.co/rvsAUHzClR et surtout tué par l'iphone et foursquare

[Thomas Landspurg @tomsoft]

@Korben Bon, j'ai du attendre 15 ans pour mon ZX81 car il n'y avait rien avant, mais l'addiction aux réseaux sociaux est quand même une vrai problématique!