Stephan Janssen
@stephanjanssen.be
Founder @Devoxx.com Devoxx4kids, BeJUG and DevoxxGenie | Co-founder @Voxxed.com, VoxxedDays - Founder JCS int. acquired by RealDolmen ('02) : See also @ https://stephanjanssen.be https://grokipedia.com/page/Stephan_Janssen
The #Devoxx Belgium setup is done ✅ Pre-registration is now in full swing! 🚀🎟️ Tomorrow, we officially kick off Devoxx Belgium 2026. 🔥🇧🇪
The games are in. It’s your turn to play! 🎮 🕹️ The #Devoxx Robot Games community has been busy building. Now we need your reviews and ratings: try the games, pick your favourites and give them 1–3 stars. Play & Rate: game.devoxx.be/vote.html
Wow... some amazing #Devoxx Games have arrived ❤️🤩 Deadline is tonight... game.devoxx.be
Big personality. Little robot.
Meet Voxxy in 3D, then build a playable game with Voxxy, Droid and Biggy inside the Kinepolis Antwerp. Three winners take Devoxx Belgium tickets.
game.devoxx.be
Speaking at Devoxx Belgium next week? 🎤 Claim your speaker profile in the Devoxx Companion app: see your ratings & feedback, upload slides, pick your photos and reply to comments. Pro tip: put your talk's QR code on your last slide ⭐ 👉 m.devoxx.com/events/dvbe26
Last weekend to work on your #Devoxx Robots game! Still polishing levels, squashing bugs, or adding that one last crazy feature? Now’s the time 😅 👉 game.devoxx.be I’ll also share a short demo of my own game, just as a bit of inspiration/reference 🎮👀
Parallel Constrained Decoders (PCD) as a possible solution for Agents Mis-alignment?! Love to hear your thoughts on this... www.linkedin.com/pulse/observ...
I built a native PCD (Parallel Constrained Decoder) server that embeds llama.cpp and guarantees bounded JSON. Every field gets exactly one allowed value & the probability behind it 🔥 MIT, local GGUF, macOS binary, Linux compliant 👇 github.com/stephanj/pcd...
GitHub - stephanj/pcdServer: Native Parallel Constrained Decoder Server for Apple and Linux
Native Parallel Constrained Decoder Server for Apple and Linux - stephanj/pcdServer
github.com
New podcast episode! Stephan Janssen (@stephanjanssen.be), creator of @devoxx.com - agentic engineering, staying ahead of the curve, and memorable conferences links below
Just released a Parallel Constrained Decoding service using java, llama.cpp with local models 🤩🔥🚀 github.com/stephanj/par... #Enjoy #Jev #LookAlike
GitHub - stephanj/parallelConstraintDecoding: Parallel Constraint Decoding using both Java and Python
Parallel Constraint Decoding using both Java and Python - stephanj/parallelConstraintDecoding
github.com
Must see presentation on the OpenAI's Agentic attack on HuggingFace from OpenAI's engineers... 🫣 youtu.be/87DyyMV0kCY
Black Hat USA 2026 | The 'Breaking' News: The OpenAI–Hugging Face Incident
YouTube video by Black Hat
youtu.be
The Devoxx Belgium 2026 schedule is LIVE! 🚀 And we’re not quite done yet, expect another 10 talks to be added very soon! 🔥 Once again, the scheduling magic was powered by Timefold ❤️ m.devoxx.com/events/dvbe2...
34 days to Devoxx Belgium. 184 talks, 187 speakers and counting, the schedule app already open for favouriting, and two movie nights in the Kinepolis screens, including a premiere the night before it hits theatres 🍿 It's all in this week's newsletter 👇 redirect.devoxx.be/nl3/yrFcvRn8...
Replaced #Mailjet with my own self-hosted, DMARC, SPF and DKIM-compliant SMTP server. Built in just two days using spec-driven development 🔥 Another selfware project is already using it 🤩 #HavingFun
‼️Devoxx Belgium 2026 Tickets ‼️ 2nd Batch Drops August 31 at 14h00 CEST 🔥🚀 This batch will include the last available Conference-only tickets, along with a limited number of Combi and Deep Dive tickets! 👉🏽 reg.devoxx.be
Already 2100+ Devoxxians set to attend #Devoxx Belgium this year... Second registration batch opens on August 31st with a limited batch of conference-only tickets 🔥👀🧠 👉 reg.devoxx.be
reg.devoxx.be
You can already get a glimpse of what’s coming at Devoxx Belgium 2026! m.devoxx.com/events/dvbe26 🔥🚀 Updates every hour... 👀
Mailtrap wasn't working for me anymore so I asked Claude to create a local SMTP app so I can test the new #Devoxx CFP bulk email feature... #SelfWare Feel free to use it github.com/stephanj/mai...
GitHub - stephanj/mailtraxx
Contribute to stephanj/mailtraxx development by creating an account on GitHub.
github.com
Yesterday evening, during the eclipse, we held our final CFP selection meeting for #Devoxx Belgium, with both local & remote participations. A huge THANK YOU to everyone involved in reviewing and rating the talks! Expect related emails over the next two days… 🚀
We introduced a Devoxx Belgium registration waiting room, will be interesting to see it in action next week!
Devoxx Belgium@devoxx.com · 2mo agoThe Devoxx Belgium newsletter is out! 👀 More info on : ⦿ NEW: Registration waiting room ⦿ In-depth CFP stats ⦿ Closing keynote announcement redirect.devoxx.be/nl3/eIfsKzac...