Emmanuel Bernard

Emmanuel Bernard

@emmanuelbernard.com

Open Source software engineer: Hibernate team, Quarkus co-founder and more. Cloud Services @ Red Hat. Les Cast Codeurs founder. Java Champion...

1.3K followers145 following169 posts

Emmanuel Bernard reposted

Sylvain Wallez
@swallez.com

J'ai passé un très bon moment avec l'ami @emmanuelbernard.com au studio @devoxx.fr à discuter de Rust, et aussi de plein d'autres choses. Et comme il dit, on aurait pu discuter des heures 😜

Devoxx France@devoxx.fr

« Au début le compilateur est un ennemi, puis un professeur, puis un assistant. » 🦀 @swallez.com décortique Rust : borrow checker, latence sans GC et parser Parquet zéro-copie. De quoi se dérouiller les méninges ! 📺 La vidéo à voir ici : youtu.be/Kx4_k4EhSKY

Emmanuel Bernard
@emmanuelbernard.com

Comme d'habitude, impressionné par la profondeur des connaissances de @jmdoudoux.bsky.social sur la JVM. Et bon anniversaire à son didacticiel Java 😀

Devoxx France@devoxx.fr

Nouvelle vidéo Studio Devoxx France ! @jmdoudoux.bsky.social (Java Champion) nous explique l’évolution de la JVM vers Kubernetes, les pièges des ergonomics dans les petits conteneurs, GraalVM natif... et bien d'autres choses ! 🎬 à voir ici : youtu.be/6jAJyMUQj-A

Emmanuel Bernard
@emmanuelbernard.com

Une vrai rencontre pour moi. Je ne sais pas sous quel cailloux j'étais mais je n'avais jamais croisé ni @eventuallycoding.com, ni Malt. Et un sujet stimulant sur sa place dans le monde.

Devoxx France@devoxx.fr

« La tech n'a jamais été neutre. » Hugo Lassiège (@eventuallycoding.com) ex-CTO Malt, fondateur de Writizzy est passé au Studio Devoxx pour parler de dépendance aux clouds US, éthique perso vs politique collective et du manque (criant) de CEO tech en Europe. 🎬 La vidéo : youtu.be/rNjVa7AmVnA?...

youtu.beLe moment Spoutnik de la tech européenne ? Rencontre avec Hugo LassiègeYouTube video by Devoxx France
Emmanuel Bernard
@emmanuelbernard.com

For people using Getting Things Done out there. Remember context. I mentioned high enzgegy / low energy as a context. I think now I can add high tokens and low/no tokens to the tasks. Tokens budgets is a thing 🙃

Emmanuel Bernard
@emmanuelbernard.com

My take on the Claude Mythos claims (reportedly very good at offensive cybersecurity) - I think the claims are legit - the industry catch up to fix and raise to the level will be somewhat painful

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Emmanuel Bernard
@emmanuelbernard.com

Also reading between the lines, cybersecurity is just the domain that anthropic decided to apply mythos on. Other domains will follow and thinking about price per value will be more important than ever

Emmanuel Bernard
@emmanuelbernard.com

My take on the Claude Mythos claims (reportedly very good at offensive cybersecurity) - I think the claims are legit - the industry catch up to fix and raise to the level will be somewhat painful

View full thread
Emmanuel Bernard
@emmanuelbernard.com

- I think this means that software will be more expensive, not less and that an software editor brings value (sharing the cost around « coding ». I base that on the security aspect and others I am seeing

Emmanuel Bernard
@emmanuelbernard.com

- mythos project evaluation runs are reportedly in the order of 10k for analysys and build of the main exploit, so you can’t run in each PR shift left style :) - AI is becoming more expensive as it gets more useful.

Emmanuel Bernard
@emmanuelbernard.com

My take on the Claude Mythos claims (reportedly very good at offensive cybersecurity) - I think the claims are legit - the industry catch up to fix and raise to the level will be somewhat painful

Emmanuel Bernard
@emmanuelbernard.com

- mythos will be expensive. I think 10x Opus 4.6. So above script kiddy but affordable for a big enough org - it is conveniently good marketing for Anthropic IPO (see later point)

Emmanuel Bernard
@emmanuelbernard.com

- Anthropic happened to have reached this level and they had to announce it now to reap the benefit of « thousands of vulnerabilities found », the next contender will get what remains (low)

Emmanuel Bernard reposted

Guillaume Laforge
@glaforge.dev

Merci à tous ceux qui sont venus à @devoxx.fr nous voir @emmanuelbernard.com et moi pour parler des protocoles pour les agents IA, avec le focus sur #MCP et #A2A, et implémentations en #ADK et @langchain4j.dev Comme promis, les slides de notre présentation : speakerdeck.com/glaforge/sta...

speakerdeck.comStandards et agents IA : un tour d’horizon de MCP, A2A, ADK et plus encoreLes fondations des agents IA reposent sur une poignée de protocoles communs que vous devez maîtriser pour tirer le meilleur parti de votre LLM et de vot…
Emmanuel Bernard
@emmanuelbernard.com

I like to chastise Sonnet and Opus for their mistakes from time to time. "Ground your answer, this is wrong". I want to show them, they haven't mastered it all... yet.

Emmanuel Bernard
@emmanuelbernard.com

I don’t agree with you Sylvain and I think the article does not either. People that have written specs that need to be implemented by several other systems, that spend countless hours to refine it, know that uncertainty and unclarity creeps in at every opportunity.

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Emmanuel Bernard
@emmanuelbernard.com

I don’t agree with you Sylvain and I think the article does not either. People that have written specs that need to be implemented by several other systems, that spend countless hours to refine it, know that uncertainty and unclarity creeps in at every opportunity.

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Emmanuel Bernard
@emmanuelbernard.com

Whether it’s code or your advanced spec Sylvain (of which I have doubts about), humains won’t read it much in the future. Like I don’t read much assembly code today.

Emmanuel Bernard
@emmanuelbernard.com

I don’t agree with you Sylvain and I think the article does not either. People that have written specs that need to be implemented by several other systems, that spend countless hours to refine it, know that uncertainty and unclarity creeps in at every opportunity.

View full thread
Emmanuel Bernard
@emmanuelbernard.com

What is fascinating is that coding agents can adjust one based on the other and iterate on them like a pyramid. And coding agents do “fill the blank”, the unknown, the unsaid.

Emmanuel Bernard
@emmanuelbernard.com

I don’t agree with you Sylvain and I think the article does not either. People that have written specs that need to be implemented by several other systems, that spend countless hours to refine it, know that uncertainty and unclarity creeps in at every opportunity.

View full thread
Emmanuel Bernard
@emmanuelbernard.com

So to describe the what something like code ends up being better. And between English code and Java code, I know what I prefer to read, understand and navigate. Java is less expressive and more deterministic and syntactically structured. These constraints make it a good descriptor of WHAT.

Emmanuel Bernard
@emmanuelbernard.com

I don’t agree with you Sylvain and I think the article does not either. People that have written specs that need to be implemented by several other systems, that spend countless hours to refine it, know that uncertainty and unclarity creeps in at every opportunity.

Emmanuel Bernard
@emmanuelbernard.com

Lean and you leave loads of undefined semantic. Detail to fix that and English (let alone French) will turn your text into a very long, verbose and hard to parse text. That’s because human language has lots of uncertainty built in and fighting it falls under its own weight.

Emmanuel Bernard
@emmanuelbernard.com

Comme dans beaucoup d’endroits, ma ville n’a que des listes citoyennes non affiliés. Mais les maires et certains conseillés sont grands électeurs pour les sénatoriales. C’est un trou dans la raquette de la représentation nationale.

Emmanuel Bernard reposted

Devoxx France
@devoxx.fr

Venez vivre un Super Mercredi à Devoxx France 2026 🙌 Une offre spéciale pour la journée du mercredi 22 avril : 250 € au lieu de 370 € avec le code "SuperMercredi26" ⚠️ 300 places seulement 👉 reg.devoxx.fr

Emmanuel Bernard
@emmanuelbernard.com

What do people use to clean up macOS unexpected disk space usage ? Including slack, Chrome, Firefox etc caching Nowadays any random app believes it can use 10GB for caching to be fast. Well you’re not alone on my machine buddy.

Emmanuel Bernard
@emmanuelbernard.com

Boy! Watch for Claude Desktop and Docker sandbox eating your hard drive alive. I did not understand why my incremental backup was eating 4TB of space in a matter of a couple of weeks. Now I know.

Emmanuel Bernard
@emmanuelbernard.com

Docker Sandbox is a great idea to isolate your coding agent like Claude Code from your machine. But how to share your settings? I explain it all here emmanuelbernard.com/blog/2026/02...

emmanuelbernard.comSharing your ~/.claude config with Docker SandboxI wanted to run Claude Code in YOLO mode but isolated from my actual machine. Docker has Docker Sandbox for exactly that: a CLI wrapper and a set of Docker image templates that give you a contained en...
Emmanuel Bernard
@emmanuelbernard.com

With us giving more freedom to Claude code and friends. What are your patterns to isolate you « code machine » from your « everything else » machine ? One container per project and Claude code? A VM? A vps somewhere ? Go commando? Something else ? Share and explain 🙏

Emmanuel Bernard reposted

Devoxx France
@devoxx.fr

🎉 Les résultats du CFP #DevoxxFrance 2026 sont tombés ! • 1090+ propositions • 270 speakers sélectionnés • 3 jours de conférences épiques • +4000 devs attendus ! 🗓️ RDV du 22 au 24 avril à Paris ✅ Résultats → m.devoxx.com/events/devox... 🎟️ Billetterie → reg.devoxx.fr