Stephan Janssen
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stephanjanssen.be
Stephan Janssen
@stephanjanssen.be
Founder @Devoxx.com Devoxx4kids, BeJUG and DevoxxGenie | Co-founder @Voxxed.com, VoxxedDays - Founder JCS int. acquired by RealDolmen ('02)
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My personal #Devoxx Belgium highlight ❤️🤩🔥 #ProudDad
www.youtube.com/watch?v=30qK...
Opening keynote Devoxx Belgium 2025 with Arthur Janssen
YouTube video by Devoxx
www.youtube.com
♥️👌😎 #DevoxxMa #Thanks
November 12, 2025 at 11:17 AM
My #Devoxx Morocco keynote is ready, will be fun! #DevoxxMA #SeeYouSoon☀️
November 9, 2025 at 11:30 AM
Now I remember why we moved Devoxx Belgium to the beginning of October 🤧
October 30, 2025 at 8:45 AM
Reposted by Stephan Janssen
Get your hands on the latest Project #Valhalla Early-Access Build, featuring Value Classes and Objects 🪓 #JDK26 #Java
👉 jdk.java.net/valhalla/
October 24, 2025 at 7:35 AM
OpenAI will release today a new browser named : #ChatGPT Atlas 🌍🗺️👀
October 21, 2025 at 4:11 PM
Reposted by Stephan Janssen
Just photos. Just vibes. #Devoxx Belgium 2025 ⚡️🤩
📸 @ddoutsiopoulos.bsky.social
October 21, 2025 at 8:11 AM
You can now run #Claude Code in your browser and (vibe) code on your GitHub projects🔥👀
👉🏼 claude.ai/code
October 21, 2025 at 8:10 AM
Reposted by Stephan Janssen
Devoxx Belgium 2025 Interviews : "AI Tools for Developers" by @frankdelporte.be with
1) Viktor Gamov and Baruch Sadogursky
2) Simon Maple
3) Mario Fusco
www.youtube.com/watch?v=sfel...
AI Tools for Developers
YouTube video by Devoxx
www.youtube.com
October 20, 2025 at 7:58 AM
I couldn’t resist, I turned the top-rated #Devoxx Belgium talks into an interactive WordPress page 😎
👉 devoxx.be/top-talks-de...
October 19, 2025 at 7:34 AM
After catching up on several #Devoxx Belgium talks, now relaxing with the freshly released Andrej Karpathy interview. Perfect follow-up for the many AI related talks 🤖
youtu.be/lXUZvyajciY?...
Andrej Karpathy — AGI is still a decade away
YouTube video by Dwarkesh Patel
youtu.be
October 17, 2025 at 8:09 PM
Had some fun this morning exploring the registration job titles for #Devoxx Belgium 2025. The results are now live 👀
👉 devoxx.be/devoxx-belgi...
October 17, 2025 at 9:45 AM
I was worried we might hit the #Gemini quota for moderating #Devoxx Belgium comments, feedback & transcript insights, but we ended up using only ~90K tokens. The real cost driver (which was expected) was the min instances of the Universal SSR Cloud Function, which I set to 8 🚀
October 16, 2025 at 8:10 AM
Exactly one week ago, I gave my #Devoxx Belgium opening keynote on Vibe Coding: The Developer Renaissance. You can watch it here 👇🍿
youtu.be/lba2uEaRLcs?...
Opening Keynote: Vibe Coding by Stephan Janssen
YouTube video by Devoxx
youtu.be
October 15, 2025 at 6:39 AM
My Vibe Coding opening keynote at #Devoxx Belgium 2025 ranked 6th in the Top-Rated Talks in the Combined Score leaderboard 🔥
October 14, 2025 at 7:46 AM
Oracle just released WayFlow, "a powerful and intuitive Python library for building AI assistants".

But… why not in Java if they’re aiming for enterprise adoption? ☕️🫣

👉 github.com/oracle/wayflow
GitHub - oracle/wayflow: WayFlow is a powerful, intuitive Python library for building sophisticated AI-powered assistants. It is a reference runtime for Agent Spec, with native support for all Agent S...
WayFlow is a powerful, intuitive Python library for building sophisticated AI-powered assistants. It is a reference runtime for Agent Spec, with native support for all Agent Spec Agents and Flows. ...
github.com
October 14, 2025 at 6:45 AM
Ever wondered when Devoxxians rate talks? I did too, so I "built" a time-series stacked bar chart in the #Devoxx Companion app for speakers 👀🔥☕️ v0.4.23
October 13, 2025 at 10:40 AM
My personal #Devoxx Belgium highlight ❤️🤩🔥 #ProudDad
www.youtube.com/watch?v=30qK...
Opening keynote Devoxx Belgium 2025 with Arthur Janssen
YouTube video by Devoxx
www.youtube.com
October 10, 2025 at 6:05 AM
Reposted by Stephan Janssen
The Devoxx Belgium presentations from the first Deep Dive day are now available on each talk’s detail page and on our YouTube channel. Enjoy! 🍿👀
m.devoxx.com/events/dvbe25
October 7, 2025 at 5:58 AM
New for #Devoxx Belgium this year are Live Transcript Insights of the talks, refreshed every 10 minutes ☕️ #AIExperiment
See it in action 👇🏽 m.devoxx.com/events/dvbe2...
October 6, 2025 at 8:30 AM
Just released v0.4.14 of the #Devoxx Companion! 🎉
This update restores your previous position in the schedule list/grid when you return from viewing a talk.
A small but great #UX improvement.
Big thanks to Frederick for the shout out! 👍🏼☕️
Small critique on the #Devoxx companion app: when you open a talk from the schedule list and go back, it jumps back to the top of the list instead of keeping your place.
October 4, 2025 at 9:04 AM
Reposted by Stephan Janssen
Safe travels to all Devoxxians heading to Antwerp!
See you soon at #Devoxx 🚆✈️🚗🚴🏼
October 3, 2025 at 7:08 AM
After #Devoxx Driven Development comes Devoxx Driven Debugging 🤓#DDD
Found a memory leak in the Server-Side Rendering (SSR) function last night for the Devoxx Companion webapp - turns out that’s why the site eventually became unresponsive #Fixed 🪲
October 3, 2025 at 6:46 AM
The mail service we use is finally back online, which means I can now share our last #Devoxx 2025 newsletter 🫣
redirect.devoxx.be/nl3/w2QUJQCh...
October 1, 2025 at 7:20 AM
New in #Claude Code 2.0: the /usage command.
Now you can easily track model token consumption and plan smarter 🔥
September 30, 2025 at 8:27 AM