Arnaud Héritier
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Arnaud Héritier
@aheritier.net
#lescastcodeurs #devoxxfr #AI #platformEngineering #devops #oss #jenkinsci #maven #asf
Reposted by Arnaud Héritier
"Your Go tests probably don't need a mocking library" by @rednafi.com

I learned a ton from this post. Some of these patterns I intuitively used before and didn't know the name for such a pattern. Thanks for the write up Redowan Delowar.

rednafi.com/go/mocking-l...

#golang
Your Go tests probably don't need a mocking library
Practical patterns for mocking in Go without external libraries. Learn to mock functions, methods, interfaces, HTTP calls, and time using only the standard library
rednafi.com
February 15, 2026 at 10:24 PM
Reposted by Arnaud Héritier
Platform engineering has better things to do than to build a platform. Just buy it instead. Or, you could experience the seven types of failure: youtu.be/9-GveqhDKdc?si=0qzwJ...
7 Ways to Fail at Building a Platform - Coté
Building your own internal developer platform can seem attractive, but it's a risky proposition. In a platform as a product approach, when you build it, you own it, and now you're in the business of developing a product instead of your actual business. 7 Ways to Fail at Building a Platform Coté Config Management Camp Ghent 2026 More information and contact: https://cfp.cfgmgmtcamp.org/ghent2026/talk/CU9TCZ/
youtu.be
February 15, 2026 at 8:07 AM
Reposted by Arnaud Héritier
Ever wondered how a full LLM pipeline (training + inference) works under the hood?

Andrej Karpathy — AI researcher, former Director of AI at Tesla and founding member of OpenAI — put together a 243‑line Python example that is a masterclass in clarity and minimalism gist.github.com/karpathy/862...
microgpt
microgpt. GitHub Gist: instantly share code, notes, and snippets.
gist.github.com
February 15, 2026 at 9:03 AM
Reposted by Arnaud Héritier
Je suis sur cette image (avec @maritvandijk.bsky.social) et j’adore trop ça !
#DevoxxFR
February 13, 2026 at 2:25 PM
Reposted by Arnaud Héritier
On se voit à @devoxx.fr cette année ! 😍
Merci au comité de sélection pour leur confiance.🩷
February 13, 2026 at 9:18 AM
Reposted by Arnaud Héritier
Thanks Gerd for this great introduction to Maven 4.0. It was enlightening for me. Eager to talk with you in @jchateauunconf.bsky.social !
I am happy to announce my first blog post of a series about Java Module support with @maven.apache.org. The upcoming #ApacheMaven 4 release will enable multiple Java Modules in a single project (just one POM etc.): open-elements.com/posts/2026/0...
February 13, 2026 at 1:09 PM
Reposted by Arnaud Héritier
Bon @devoxx.fr , ça sera sans moi cette année, du moins en tant que speaker.
Félicitations à celles et ceux qui ont été retenus !
February 12, 2026 at 1:22 PM
Reposted by Arnaud Héritier
Selectionnés avec @hgomez.bsky.social pour donner notre talk #IoT Maker durant @devoxx.fr 2026… ca sent deja la soudure ;)
On vous attend nombreux avec un nouveau badge … surprise ;)
February 12, 2026 at 8:50 AM
Reposted by Arnaud Héritier
Quelle joie de voir que cette année, je n'ai pas eu un ni deux mais bien trois refus pour @devoxx.fr !
Bien joué aux ... gentilles personnes qui ont été retenues !
🤣🤣🤣🤣
Zach Galifinakis Hangover GIF
Alt: Zach Galifinakis Hangover : I'm not jealous at all
media.tenor.com
February 12, 2026 at 2:57 PM
Reposted by Arnaud Héritier
I'm catching up on some Quarkus news and this one caught my eye
quarkus.io/blog/buildin...

It all started from "builds are slow", and the team as usual asked the 5 whys (or more) and reset all expectations to find a proper solution. Proud of this community ❤️.
Towards faster builds
Quarkus: Supersonic Subatomic Java
quarkus.io
February 12, 2026 at 8:54 AM
Reposted by Arnaud Héritier
Mon compère @une-tasse-de.cafe et moi même reprendrons du service à @devoxx.fr

On va parler de scheduling dans Kubernetes

Un grand merci à la team CFP pour la confiance 🤩
February 12, 2026 at 11:14 AM
Reposted by Arnaud Héritier
I was so excited to be at @devoxx.fr this year that I clumsily deleted my previous post 🤦‍♂️ 😄 announcing our live-coding session of #theHive pattern with @julientopcu.com (where we will modularize the software of our Delorean). #modularMonolith #DevoxxFR
February 12, 2026 at 7:36 AM
Reposted by Arnaud Héritier
Oh la bonne nouvelle en plus de @devoxx.uk cette année je serai à @devoxx.fr 🥳

Merci pour la confiance les orgas 🤗
February 11, 2026 at 4:44 PM
Reposted by Arnaud Héritier
Il y aura un peu de Valhalla à @devoxx.fr cette année
February 11, 2026 at 5:44 PM
Reposted by Arnaud Héritier
J’ai le plaisir de participer à @devoxx.fr cette année avec 2 conférences 🥳

The Hive : coder un monolithe modulaire prêt pour les microservices avec @tpierrain.bsky.social

Vous pensiez que la dette technique était le pire ? Voici la dette de conception ! avec @josianchevalier.bsky.social

🎉
February 11, 2026 at 5:52 PM
Reposted by Arnaud Héritier
Et un, et 2 et 3 créneaux 🫣

Merci @devoxx.fr 😍
February 11, 2026 at 6:17 PM
Reposted by Arnaud Héritier
On se retrouvera à Devoxx France du 22 au 24 avril prochain pour mon talk « Another World, une belle leçon d’architecture logicielle » 🔥 #DevoxxFR

Merci @devoxx.fr pour votre confiance !
February 11, 2026 at 5:33 PM
Reposted by Arnaud Héritier
Je serai à @devoxx.fr pour vous présenter "Sous le capot d’un moteur de requête" 🎉

Une exploration des dessous du langage d'analytics ES|QL de Elasticsearch : parser, plan logique, optimiseur, plan physique, filter pushdown, exécution distribuée, calcul orienté colonnes, toussa toussa !
February 11, 2026 at 5:56 PM
You should start to receive acceptation/rejection emails. Do not panic if you don't get one right now, I won't send 100% of the selection today the time for me to adjust it a bit based on first answers. I do my best to have an answer for everyone by the end of the week.
February 11, 2026 at 4:09 PM
Reposted by Arnaud Héritier
Must read, seriously. The negative impact of AI on juniors and their ability to learn and grow has been a major questioning for me since GenAI started. Our industry is shooting itself in the foot, and this will have ripple effects for many years.
February 10, 2026 at 7:17 AM
Reposted by Arnaud Héritier
I have just created this MCP Java SDK feature proposal that we discussed with the team. The goal is to introduce a unified Virtual Threads friendly API as a future-proof alternative to the Sync/Async ones. More details on github.com/modelcontext....
Introduce a unified Virtual Threads friendly API · Issue #778 · modelcontextprotocol/java-sdk
The MCP Java SDK team and myself would like to acknowledge the strong desire to evolve the MCP Java SDK to leverage Virtual Threads as a key building block. This issue is about introducing a new un...
github.com
February 10, 2026 at 6:22 PM
Au café IA pour découvrir la génération d’images avec Raphaël Semeteys et Hajer Mabrouk
February 10, 2026 at 7:08 PM
I should start to send @devoxx.fr CFP results on wednesday.... Stay tuned!
February 9, 2026 at 11:20 AM
Reposted by Arnaud Héritier
Nouvel article qui capture l'évolution de mon usage du multi-tasking AI sur ces 4 derniers mois

www.linkedin.com/posts/freder...
L'IA au quotidien - Paralléliser ses tâches agentiques | Frédéric Camblor
Nouvel article sur ma pratique de l'IA : aujourd'hui il est question de la manière dont je parallélise mes tâches. J'y aborde : - la fin de mon flux de production monothread - mon utilisation des wor...
www.linkedin.com
February 8, 2026 at 10:58 AM