Marcus Hellberg
@marcushellberg.dev
Applied AI Researcher, Speaker, DevRel expert.
Java Champion.
VP of AI Research @vaadin.com
Java Champion.
VP of AI Research @vaadin.com
Reposted by Marcus Hellberg
👾Vaadin Tutorial for Beginners: Beautiful UIs in Pure Java
My new step-by-step tutorial on using @vaadin.com with #SpringBoot to build awesome UIs. Create a login page, filtered search, and update form in just 15 minutes. No HTML or JS needed!
youtu.be/67oJxPRa3Mg
My new step-by-step tutorial on using @vaadin.com with #SpringBoot to build awesome UIs. Create a login page, filtered search, and update form in just 15 minutes. No HTML or JS needed!
youtu.be/67oJxPRa3Mg
Vaadin Tutorial: From Spring Boot to Beautiful UI Fast
YouTube video by CyberJAR
youtu.be
November 3, 2025 at 3:02 PM
👾Vaadin Tutorial for Beginners: Beautiful UIs in Pure Java
My new step-by-step tutorial on using @vaadin.com with #SpringBoot to build awesome UIs. Create a login page, filtered search, and update form in just 15 minutes. No HTML or JS needed!
youtu.be/67oJxPRa3Mg
My new step-by-step tutorial on using @vaadin.com with #SpringBoot to build awesome UIs. Create a login page, filtered search, and update form in just 15 minutes. No HTML or JS needed!
youtu.be/67oJxPRa3Mg
Are you a Vaadin developer using AI coding tools? Stop everything you're doing and add the new Vaadin MCP server to your setup before continuing! 🚀 mcp.vaadin.com/docs/
October 28, 2025 at 11:01 AM
Are you a Vaadin developer using AI coding tools? Stop everything you're doing and add the new Vaadin MCP server to your setup before continuing! 🚀 mcp.vaadin.com/docs/
What an absolute treat to have my friend @starbuxman join Vaadin Create to do fast-paced, funny, and information-packed speedrun of all the exciting new features coming in Spring Boot 4 and @spring.io 7!
October 21, 2025 at 9:08 AM
What an absolute treat to have my friend @starbuxman join Vaadin Create to do fast-paced, funny, and information-packed speedrun of all the exciting new features coming in Spring Boot 4 and @spring.io 7!
Vaadin Create 2025 is on!
October 21, 2025 at 8:09 AM
Vaadin Create 2025 is on!
So close… My flight from Orlando was late and I just caught a glimpse of my connection to Helsinki as it pulled out of the gate 😭
October 9, 2025 at 10:56 PM
So close… My flight from Orlando was late and I just caught a glimpse of my connection to Helsinki as it pulled out of the gate 😭
Reposted by Marcus Hellberg
🍃 Real-World AI Patterns with Spring AI and Vaadin by @marcushellberg.dev / @thomasvitale.com @ Spring I/O 2025
▶️ Video: youtu.be/cLWFu33kM3E
🔗 Slides: speakerdeck.com/thomasvitale... #springio25
▶️ Video: youtu.be/cLWFu33kM3E
🔗 Slides: speakerdeck.com/thomasvitale... #springio25
Real-World AI Patterns with Spring AI and Vaadin by Marcus Hellberg / Thomas Vitale @ Spring I/O 25
YouTube video by Spring I/O
youtu.be
October 2, 2025 at 2:02 PM
🍃 Real-World AI Patterns with Spring AI and Vaadin by @marcushellberg.dev / @thomasvitale.com @ Spring I/O 2025
▶️ Video: youtu.be/cLWFu33kM3E
🔗 Slides: speakerdeck.com/thomasvitale... #springio25
▶️ Video: youtu.be/cLWFu33kM3E
🔗 Slides: speakerdeck.com/thomasvitale... #springio25
When Claude goes down
September 24, 2025 at 8:47 AM
When Claude goes down
Should we have a higher-level AI chat component in @vaadin.com that handles attachments, streaming, message history? You could register #SpringAI tools, advisors to it to expand its functionality.
Full code for the demo below: new AiChat(OpenAiChatModel.class)
Full code for the demo below: new AiChat(OpenAiChatModel.class)
August 25, 2025 at 9:50 AM
Should we have a higher-level AI chat component in @vaadin.com that handles attachments, streaming, message history? You could register #SpringAI tools, advisors to it to expand its functionality.
Full code for the demo below: new AiChat(OpenAiChatModel.class)
Full code for the demo below: new AiChat(OpenAiChatModel.class)
Reposted by Marcus Hellberg
#Java fanatics come together!
Pack your bags (and your #JVM) for #JCONUSA25 at #IBM #TechXchange in sunny Orlando, Florida (Oct 6–9)! Meet Java #Champions learn futuristic #tech and #geek out with fellow #devs 🌴☕
Discounted until the end of August 👉 usa.jcon.one/register
#JCON #JCON2025
Pack your bags (and your #JVM) for #JCONUSA25 at #IBM #TechXchange in sunny Orlando, Florida (Oct 6–9)! Meet Java #Champions learn futuristic #tech and #geek out with fellow #devs 🌴☕
Discounted until the end of August 👉 usa.jcon.one/register
#JCON #JCON2025
August 23, 2025 at 8:12 AM
#Java fanatics come together!
Pack your bags (and your #JVM) for #JCONUSA25 at #IBM #TechXchange in sunny Orlando, Florida (Oct 6–9)! Meet Java #Champions learn futuristic #tech and #geek out with fellow #devs 🌴☕
Discounted until the end of August 👉 usa.jcon.one/register
#JCON #JCON2025
Pack your bags (and your #JVM) for #JCONUSA25 at #IBM #TechXchange in sunny Orlando, Florida (Oct 6–9)! Meet Java #Champions learn futuristic #tech and #geek out with fellow #devs 🌴☕
Discounted until the end of August 👉 usa.jcon.one/register
#JCON #JCON2025
The @vaadin WTF summit is happening!
(The only logical name for a workshop spanning Wednesday, Thursday, and Friday)
(The only logical name for a workshop spanning Wednesday, Thursday, and Friday)
August 13, 2025 at 3:21 PM
The @vaadin WTF summit is happening!
(The only logical name for a workshop spanning Wednesday, Thursday, and Friday)
(The only logical name for a workshop spanning Wednesday, Thursday, and Friday)
Reposted by Marcus Hellberg
My weekly AI news roundup by ChatGPT is exceptionally insightful this week
August 4, 2025 at 8:11 AM
My weekly AI news roundup by ChatGPT is exceptionally insightful this week
Ollama now has a UI as well! I know what I'll be doing today 🤩
July 31, 2025 at 7:36 AM
Ollama now has a UI as well! I know what I'll be doing today 🤩
BREAKING: @vaadin.com is a terrible framework (if you're trying to hack it).
July 30, 2025 at 2:46 PM
BREAKING: @vaadin.com is a terrible framework (if you're trying to hack it).
🚀 Updated Vaadin MCP
✨ Combines semantic + keyword search with reranking
🛠️ MCP Tools Available:
📚 get_vaadin_primer - Vaadin fundamentals & best practices
🔍 search_vaadin_docs - Search Vaadin docs
📄 get_full_document - Complete doc retrieval
🏷️ get_vaadin_version - Latest stable version info
✨ Combines semantic + keyword search with reranking
🛠️ MCP Tools Available:
📚 get_vaadin_primer - Vaadin fundamentals & best practices
🔍 search_vaadin_docs - Search Vaadin docs
📄 get_full_document - Complete doc retrieval
🏷️ get_vaadin_version - Latest stable version info
July 29, 2025 at 12:39 PM
🚀 Updated Vaadin MCP
✨ Combines semantic + keyword search with reranking
🛠️ MCP Tools Available:
📚 get_vaadin_primer - Vaadin fundamentals & best practices
🔍 search_vaadin_docs - Search Vaadin docs
📄 get_full_document - Complete doc retrieval
🏷️ get_vaadin_version - Latest stable version info
✨ Combines semantic + keyword search with reranking
🛠️ MCP Tools Available:
📚 get_vaadin_primer - Vaadin fundamentals & best practices
🔍 search_vaadin_docs - Search Vaadin docs
📄 get_full_document - Complete doc retrieval
🏷️ get_vaadin_version - Latest stable version info
TIL: in Norway they put the picture of the child whose liver they use to make the paté on the can.
July 2, 2025 at 6:56 PM
TIL: in Norway they put the picture of the child whose liver they use to make the paté on the can.
Getting new Vaadin followers with @marcenglund.com
June 30, 2025 at 9:26 AM
Getting new Vaadin followers with @marcenglund.com
It's fair to say I'm not a big fan of Kubernetes ☸️
June 24, 2025 at 9:20 AM
It's fair to say I'm not a big fan of Kubernetes ☸️
Reposted by Marcus Hellberg
New blog post: How to consume and display Kafka messages in a reactive way using #SpringKafka, #SpringBoot, #React and #Hilla (by @vaadin.com) 👇
rene-wilby.de/en/blog/hill...
rene-wilby.de/en/blog/hill...
Hilla and Kafka. Part 1: Consuming messages
Consuming Kafka messages using Spring Kafka and Spring Boot's auto-configuration capabilities in the Hilla backend and displaying these messages in the Hilla frontend UI in a reactive way.
rene-wilby.de
June 23, 2025 at 7:12 AM
New blog post: How to consume and display Kafka messages in a reactive way using #SpringKafka, #SpringBoot, #React and #Hilla (by @vaadin.com) 👇
rene-wilby.de/en/blog/hill...
rene-wilby.de/en/blog/hill...
Don’t you just love that feeling when you dig around your old stuff and happen to find 100 trillion dollars?
June 22, 2025 at 5:22 PM
Don’t you just love that feeling when you dig around your old stuff and happen to find 100 trillion dollars?
“The summer is short. Most of it rains away.”
- popular Swedish summer song
Happy midsummer! ☀️
- popular Swedish summer song
Happy midsummer! ☀️
June 20, 2025 at 9:12 AM
“The summer is short. Most of it rains away.”
- popular Swedish summer song
Happy midsummer! ☀️
- popular Swedish summer song
Happy midsummer! ☀️
Reposted by Marcus Hellberg
Judge me.
I’ve been using Spring Boot with Vaadin to build a typical reactive web app, sort of thing React gets used for.
I like it, it feels way more solid than flaky JS and bundling. Also does hotswap and is of course statically typed (as all good languages are).
I’m smitten.
I’ve been using Spring Boot with Vaadin to build a typical reactive web app, sort of thing React gets used for.
I like it, it feels way more solid than flaky JS and bundling. Also does hotswap and is of course statically typed (as all good languages are).
I’m smitten.
June 19, 2025 at 10:04 PM
Judge me.
I’ve been using Spring Boot with Vaadin to build a typical reactive web app, sort of thing React gets used for.
I like it, it feels way more solid than flaky JS and bundling. Also does hotswap and is of course statically typed (as all good languages are).
I’m smitten.
I’ve been using Spring Boot with Vaadin to build a typical reactive web app, sort of thing React gets used for.
I like it, it feels way more solid than flaky JS and bundling. Also does hotswap and is of course statically typed (as all good languages are).
I’m smitten.