@lutskedev
Software Engineer @Craftsmen | Speaker | Community builder Full-stack dev with a focus on Java, Angular & AI. Passionate about Machine Learning, cats ๐พ, and sharing knowledge. Advocating for diversity as a woman in tech. ApeldoornJUG, JUGNoord,Devoxx4Kids
@apeldoornjug.bsky.social on March 17.
RSVP open until Monday night. Sponsored by @craftsmennl.bsky.social
Join us for an evening with food, drinks, and two great talks:
โข Clean Architecture with Spring Boot โ Michel Schudel
โข Maven build speed secrets โ @koturk.nl
RSVP via lnkd.in/eTYUUJVF
Lutske de Leeuw in a pink T-shirt smiling with a green duolingo cake. It has green frosting on the outside with a fondant duolingo owl on top. The cake stands on a table and in the background you see an office space.
700+ days of #Duolingo and I celebrated the only logical way: with cake ๐๐ฆ
Fully homemade. Slightly wobbly. Very proud ๐
Turns out small daily steps can end in chocolate ๐ซโจ
I need your help: If anyone wants to send me an audio snippet saying "Boring" (as in "Java 26 is stable. It's boring."), I would happily accept them. I want to play this audio via a button press during a talk.
In other news: I'm speaking at @amsterdam.voxxeddays.com with @lutskedev.bsky.social.
Jfokus 2026 โ Best Rated Talk #12
Tame your Llama, run AI in Java
Lutske De Leeuw
Run Llama models locally in Java.
No ML PhD. No complex setup.
Practical, code-first AI for real NLP and classification use cases.
Watch the talk: www.youtube.com/watch?v=v4c6...
#Jfokus #Java #AI #LLM
Lutske de Leeuw smiling with her speaker badge in front of the jfokus logo
๐ค Speaker badge on at @jfokus.se ๐ธ๐ช
Todayโs the day!
๐ 13:00 โ Room A4
Tame your Llama: run AI in Java ๐คโ
If youโre around, come say hi or join the session!
Whoโs already here? ๐ฅ
Jfokus logo with some digital snow and some sponsors. To the right Lutske de Leeuw is smiling because she's happy to be there!
Just arrived in Sweden ๐ธ๐ชโ๏ธ
-8ยฐC, no snowstorm (yet!) and sooo excited!
The next days: @jfokus.se ๐
Tue 13:00 Room A4 โ Tame your Llama: run AI in Java
Wed 10:10 mentorship on building strong Java User Groups
Whoโs already here? ๐
Illustration in a Norse mythology style showing a llama wearing a Viking helmet, seated at a wooden table with three Java Duke mascots. One Duke wears a Viking helmet, one has a pink bow, and one has no headwear. They sit in a Viking hall with firelight, shields, swords, candles, and mugs, creating a festive JFokus 2026 atmosphere.
Excited for @jfokus.se ๐
Next week already: my Tame your Llama talk on Tuesday ๐ฆ
and a JUGs mentorship on Wednesday
More info about the talk here: www.jfokus.se/talks.html?s...
Register for the mentorship here: jav.mn/hub-jfokus-r...
See you there ๐
#TameYourLlama #Jfokus #JUG #KnowledgeSharing
Festive winter illustration with falling snow. A smiling llama wearing a Santa hat and scarf stands next to Duke, the Java mascot, and Santa Claus. They are surrounded by wrapped presents and snow-covered trees. Text reads: โMerry Christmas and a Happy and Healthy 2026! Best wishes, Lutske
Wishing everyone happy holidays and a healthy 2026 ๐
Thanks for being part of my year!
A Sinterklaas treat with kruidnoten, chocolate kruidnoten and more chocolate wrapped in foil with a red ribbon on a grey background.
Got a Sinterklaas treat box from work ( @craftsmennl.bsky.social ) today ๐โจ
Sinterklaas has always been my favourite holiday, so this absolutely made my day.
Chocolates at the office? Yes please ๐ซ๐
Anyone else get something fun from their employer this Sinterklaas season? ๐
โจ
Trying to catch up on this yearโs #CraftingAIAdventOfPrompt already behind, whoops ๐
But today I added a new friend to the scene: a cheerful Christmas-ready lion joining Hugo and Chipper in their cozy countdown corner.
Loving how these little AI-generated characters come to life! ๐๐ฆโจ
๐ซ๐ท Bonjour from #NewCrafts Paris!
AI and GenAI are cool, but today Iโm taking it back to basics. Machine Learning 101 (with a few cats included ๐ฑ).
Letโs talk code, coffee, and croissants โ๐ฅ
โJava is here to stay โ maybe forever, or at least our lifespan.โ .
In her chat with Andres Almiray, Lutske de Leeuw shows how Java developers can make AI their own, with tools like LangChain4j and a strong community backbone.
#JNation #Java #AI #LLMs #LangChain4j
Lutske de Leeuw holding her speakers badge in front of the voxxed days Luxembourg 2025 poster. With the 4 houses in a magic harry potter inspired theme.
Today at @lu.voxxeddays.com 16:00 in the NT room. Tame your llama, Run AI in Java!
Get ready for live demo's, Llamas and more tech fun!
Do I see you there?
Thank you!
Thank you @hansolo.eu ๐๐โบ๏ธand @johanhutting.bsky.social ๐๐โบ๏ธ๐ฅณ
Lutske de Leeuw showing her Jspring speaker badge in front of the welcome banner.
Arrived at jspring @nljug.bsky.social Do I see you there (during my session)?
A blurry photo of Lutske de Leeuw and the audience during JNation 2025. Everybody is smiling and raising or waving their hand to be in the picture.
Lutske de Leeuw raises her hand to ask the audience to answer the question on the screen. During her Jnation talk "Tame your llama, get AI in Java" The room is light and you see the audience listening carefully with every seat is taken.
Lutske de Leeuw smiling and doing thumbs up just before the presentation in a green dress behind her stickered laptop and the JNation stand with an owl with a rock guitar. In the back you see a Jnation flag and a part of the big screen.
Had an amazing time at @jnationconf.bsky.social! Met so many inspiring people, learned a ton, and shared stories about AI in Java. Thanks to everyone who made it unforgettable. See you next time!
#Jnation #craftsmen #speaker #KnowledgeSharing #networking
Lutske de Leeuw is live at JNation 2025 with: โTame your Llama, run AI in Javaโ.
A practical session on integrating AI models into Java projects โ and making it useful, not just impressive.
#JNation #Java #Coimbra #AI #LLMs #MachineLearning
Lutske de Leeuw smiling while taking a picture with the audience during her talk "Tame your llama, Run AI in Java" at J on the beach. The audience (~150 people) is sitting on white chairs and are smiling, waving and cheering.
Java โ, LLMs ๐ง & a sunny stage in Mรกlaga โ๏ธ
Yesterday's talk at J On The Beach went great. Demos worked, fun crowd, and lots of good conversations. Still around today if you want to chat about local AI in Java!
#JOTB25 #Java #LLM #ollama #Craftsmen #Speaker
Rijo Sam smiling and telling stories about "Tulips to Turmeric" in front of a big screen stating 'The retrospective' with an image of sticky notes and blue pens. In front of the JUGNoord attendees.
Hanno Embregts playing guitar. In front of him is a music standard for the microphone and a high table with an apple laptop on it. Behind him is a big screen with a cool photo that was taking during his key note at Devoxx Belgium a couple years ago. On the left you see some attendees from the JUGNoord event in the DUO building.
Had burritos, swapped culture stories, and ended up singing โStairway to Heavenโ with a room full of Java devs. Not your average @jugnoord.bsky.social night.
Shout-out to @rijosam.com & @hanno.codes for the laughs, lessons, and live music. ๐๐ธ
#JUGNoord #Java #DevLife #SoftSkills
Our @jugnoord.bsky.social April event is live. RSVP now!
With talks from @hanno.codes and @rijosam.com
Sign up here: www.meetup.com/jug-noord/ev...
The @amsterdam.voxxeddays.com video's are already online! If you missed my talk for whatever reason or just want to watch it back: www.youtube.com/watch?v=I1xb...
#VDAMS25 #voxxedAmsterdam #Speaker
It was great talking at @amsterdam.voxxeddays.com If you want to know more about jep 485 stream gatheres @piotrprz.bsky.social will give a deep dive of it at 15:00 in Room 12
#VDAMS25
Arrived at @amsterdam.voxxeddays.com ! Super exited to talk about java 24 in Room 2 at 10:25
See you there!
#VDAMS25
Love that the "it worked on my machine" is the most damaged one. ๐
I've been places, this laptop is going places, starting tomorrow. ๐
A laptop with a lot of stickers on it, from Java's duke, cats, rubber ducks and more computer related stuff. Surrounded by other stickers, peeled off stickers.
๐ง ๐๐ฎ๐ฌ๐ญ-๐ข๐ง-๐๐ข๐ฆ๐ (๐๐๐) ๐๐ญ๐ข๐๐ค๐๐ซ-๐ข๐ง๐ ! ๐
I just couldnโt bear to bring a clean-slate laptop to my presentation tomorrow at @amsterdam.voxxeddays.com so here it is, (almost) fully decorated! ๐๐ Still some room left for more, of course. ๐
Show me your stickered laptop! ๐ปโจ Drop a pic in the comments!
โฐ๐๐จ๐ฎ๐ง๐ญ๐ข๐ง๐ ๐๐จ๐ฐ๐ง ๐ญ๐จ @amsterdam.voxxeddays.com ๐ญ
Iโm beyond excited to be speaking at this amazing Java conference! In this video, I share why Iโm looking forward to it.
If you havenโt got your ticket yet, get yours here: amsterdam.voxxeddays.com! ๐๏ธ
Who is also there this Thursday?
Roy Wasse starting his talk about "How good of a developer are you?" at the JUG Noord. In front of a screen with a presentation, a microphone, camera for the live stream and a laptop.
Jos Roseboom presenting his talk about Spring Modulith. He is in front of a screen that says "Structure" in a big font. You see also the firs row of attendees of the JUG Noord.
A room with ~22 people who where listening to Jos Roseboom during his talk about Spring Modulith at the JUG Noord. The attendees are sitting in colourfull chairs and on the screen is a slide with a happy vs a sad developer. Jos stands next to the screen.
๐ Had a great time at @jugnoord.bsky.social !
๐น @roywasse.bsky.social explored better ways to measure Java skills
๐น @josroseboom.bsky.social showed how Spring Modulith simplifies code
๐น Live-streamed to ING Back-End Summit + amazing food! ๐ฐ
Join us next time! www.meetup.com/jug-noord/
He said Hi back ๐
Sander ten Brinke introducing Lutske de Leeuw to give her talk about Machine Learning 101
Lutske de Leeuw showing python code how to read data from a .csv in a jupyter notebook
Speakers and host from WebDev Zwolle. From Left to right: Rowdy Rabouw, Lutske de Leeuw, Dennis Doomen, Sander ten Brinke, Danielle Oosten All helding a flower bouquet as speakers gift.
๐ ๐ช๐ฒ๐ฏ๐๐ฒ๐ ๐ญ๐๐ผ๐น๐น๐ฒ ๐ฑ ๐๐ข๐ง๐๐๐ฌ๐ก๐๐ข๐ฆ๐
What an inspiring evening with 70 tech enthusiasts! Danielle Oosten talked internships, Lisa Hoving delved into neurodiversity, and I made machine learning accessible. @dennisdoomen.com explored .NET frameworks
Thanks to Sander ten Brinke for hosting!
