Hey boys and girls @certificates.dev 👋 I tried to take an React exam today, but there was a network error and I couldn't continue. Now my dashboard says "Exam in progress" and I'm stuck. I need to take this exam today, can you please help me? 🙏 @aurorascharff.no

Who's ready for another investigative deep dive? 🕵🏻‍♀️ If you've ever been frustrated by how much JavaScript your React app ships, here's a step-by-step guide on investigating and fixing it 💪🏼 As usual, easy to read and lots of hands-on examples. www.developerway.com/posts/bundle...

I had a great time talking at XtremeJ 2025 @xtremej.bsky.social! Very nice to meet you Haim Michael (@lifemichael.bsky.social) and thank you for organising this event! youtu.be/MgXpWfvFSWY?...

Did you know @jetbrains.com created several playlists with music for coding? 🎶 For me, Pure Flow and Lo-Fi work the best! Spotify 👉 open.spotify.com/user/31wtooe... YouTube Music 👉 music.youtube.com/channel/UCGp...

Launching a 30% discount on my books "Advanced React" & "Web Performance Fundamentals" starting now! Perfect time to level up your React & Web Perf skills 💪🏼 There is also a secret code to turn it into 50% if there is a need 😉 Look for it in the FAQ section of the websites 👇🏼

Going back through @ricky.fm's Async React as I prep an internal talk, and this part is insanely good, felt like it deserved a reshare🔥 youtu.be/p9OcztRyDl0?...

I'm very happy about the evaluation of my talk at this year's W-JAX conference: Quality of the talk: 4.67 (4.07) Speaker's knowledge: 4.5 (4.38) The number in parentheses is the avg of all talks/speakers of the conference. Rating is 1 to 5 with 5 being the best. That motivates me to keep going!

This is going to be my first #jaxcon, and I'm really looking forward to give two talks about React, React Native and Spring Boot 🎉 🙌

📢 Rare opportunity: my team is hiring! We're looking for a new Developer Advocate to cover server-side Kotlin, focusing on Spring. If you love Spring, Kotlin, and their communities, this might just be for you. Learn more and apply here:

I'm preparing my Star Wars themed talk on TanStack DB for next week's React(Native) Kiel meetup. If you're around in Kiel on Monday evening, feel free to join us for some nerdy fun! ⚛️ www.meetup.com/kiel-react-n...

Time for an update about the latest and greatest in React by @nilshartmann.net at W-JAX conference (@jaxkonferenz.bsky.social)

Next up at W-JAX conference (@jaxkonferenz.bsky.social): Advanced Spring Security Use Cases by @cschuszter.bsky.social

Kicking off day 3 at W-JAX conference (@jaxkonferenz.bsky.social) with an insightful talk from @patbaumgartner.com about Spring Boot Observability.

Let's go W-JAX 2025 (@jaxkonferenz.bsky.social) 🎉

Stand a Chance to Win a React Mid-Level Exam Voucher! 🎉 Be the lucky dev that gets access to our React mid-level prep guide, exam & discord community for FREE! 🥇Winner announced 14 Nov. 🎁Bonus entry: RT this post Enter here👇 https://go.certificates.dev/gwy

We raised a $12.5M Series A round, led by Accel. In this next stage, VoidZero is accelerating development on both our open-source projects and Vite+, the unified JavaScript toolchain. This is only the beginning! → voidzero.dev/posts/announ...

Goodbye Hilla 👋 @vaadin.com recently announced the discontinuation of Hilla as a stand-alone product. To me, this marks the end of an ambitious project and a personal journey. rene-wilby.de/en/blog/good...

Just finished: 7 km, 36:45 min 🏃‍♂️ Personal best time in 2025 375 km so far in 2025 #happy

#OpenAPI 3.2.0: Evolving with Modern API Patterns

Existing times ahead 🚀 4 conference talks in the next 3 months: * 21.10.2025: Vaadin Create * 04.11.2025: XtremeJ * 06.11.2025: W-JAX * 09.12.2025: IT-Tage Really looking forward to meeting new people and old friends, as well as sharing my knowledge with the great developer community.

Ich freue mich sehr auf die W-JAX! #Java #SpringBoot #React #Hilla

That was fun 🤓 I had a great time talking to @cat-edelveis.bsky.social about Full-Stack, AI and personal growth. Thanks for inviting me to the #CyberJAR channel. www.youtube.com/watch?v=tqga...

Today, in just 4 hours, we are discussing myths and realities of full-stack. Join us if you are thinking of changing career direction, have stories to share, or just curious😉

Upcoming livestream on Wednesday 🗓️: Join @cat-edelveis.bsky.social and me for a relaxed talk about the challenges of full-stack development, how it can help developers to build better apps and what skills really matter in the age of AI. #Java #Spring #Vaadin #React www.youtube.com/watch?v=tqga...

I didn't know there was a name for this type of AI generated content: #AI #Slop Great take by @lastweektonight.com with John Oliver www.youtube.com/watch?v=TWpg...

Did you ever wonder which JVM could be the best for your #Vaadin web app? Check out this blog post for a detailed comparison of popular JVMs and how their unique characteristics can help to reduce start-up time, latency, memory usage and more. vaadin.com/blog/best-jv...

A really insightful talk about null safety in #Java and #Spring. @seb.deleuze.fr demonstrates how #JSpecify and #NullAway add great value to new and existing projects by turning a design issue of Java into a feature that increases stability and trust in our code bases. youtu.be/otwr0IniwRk

See #Vaadin #Flow (and other Ul frameworks) in action to create a Meme Generator (web) app. Nice presentation and live coding by @jagovreede.bsky.social.

Am 28.07. spreche ich in einem kostenlosen Webinar bei der GFU Cyrus AG über die effiziente Full-Stack-Entwicklung von Single Page Applications mit #Java, #SpringBoot, #TypeScript und #React. Weitere Informationen zum Vortrag und zur Anmeldung gibt es hier 👉 www.gfu.net/s5162

Spec-Driven Development with AI: A New Approach and a Journey into the Past martinelli.ch/spec-driven-...

New blog post: Using Kafka Streams and Interactive Queries to consume, aggregate and query streaming data in business web apps built with #Hilla (by @vaadin.com). rene-wilby.de/en/blog/hill...

Awesome 👏👏👏

Good news for app developers using the OAuth Authorization Code Flow with GitHub: PKCE (Proof Key for Code Exchange) is finally supported now. This increases the security and removes the complexity of workarounds. github.blog/changelog/20...

New blog post: Describing and comparing four approaches to implement the common Master-Detail-View pattern for business web apps using #Hilla (by @vaadin.com). rene-wilby.de/en/blog/hill...

New blog post: How to produce Kafka messages from user inputs in a web app using #SpringKafka, #SpringBoot, #React and #Hilla (by @vaadin.com) 👇 rene-wilby.de/en/blog/hill...

Today, we had to convert a #Hilla web app to Spring MVC and Thymeleaf. So much more boilerplate code, less type-safety, a poorer DX ... 😔 Really a sad day in the project. As a freelancer, I have to accept those decisions, but I will continue to advocate for efficient full-stack-development.

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...

Ready to ship modern, accessible #Java apps faster? Vaadin 24.8 has just landed – with smarter tools, new components & better UX out of the box! See what’s new 👉 vaadin.com/blog/vaadin-...

Vaadin 24.8 is here 🎉 ✨ Signals in Flow (feature flag) 📥 Upload & download made easy 🃏 Card component 📝 Markdown support 🧩 Better Forms & Master-Detail 🧠 Copilot reads your Figma custom components 💬 Kotlin nullability in Hilla 🔗 github.com/vaadin/platf...

I recently had the pleasure to join a very nice panel discussion with @frankdelporte.be, @richard.fichtner.dev and @martinelli.ch about starting new Java projects. Check out the recording youtu.be/eUVaOlRlulA and the corresponding report pages.vaadin.com/java-project... conducted by @vaadin.com

Today I had a long conversation with GitHub Copilot Chat about an OAuth configuration issue of a Spring WebClient that is used in a service application. Unfortunately, this conversation was not helpful, because Copilot continuously hallucinated things kept going round in circles. I #RTFM instead 🤓

Es war ein toller Abend und hat wirklich Spaß gemacht. Danke für die tolle Organisation und die netten Worte :)

Morgen Abend, 18:00 Uhr, DevTalk@TK, Hamburg: Effektive Full-Stack-Entwicklung mit #React und #SpringBoot. Es sind noch Plätze frei. 👇 #LiveCoding www.meetup.com/devtalk-tk/e...

It’s official: #VaadinCreate 2025 IS HAPPENING! 🥳 vaadin.com/vaadin-crea...

Keep calm and build web apps. Thanks for the fan art, @alina-yurenko.bsky.social‬!

I'm really looking forward to talking about productive and efficient development of Single Page Applications with React, TypeScript, Spring Boot and Java at DevTalk@TK on 11 June. Check out the link for more details and RSVP 👇 www.meetup.com/devtalk-tk/e...

In 2014, Russia started an unprovoked war on Ukraine, aiming to seize all of Ukraine. It launched an all-out invasion in 2022. I do not understand how anyone can possibly be taking the side of Russia and Putin. This war is not “self defense:” it is brutality and war crimes.

I built a wooden playhouse in the garden for my little daughter.

TANK vs TESLA "We've crushed fascism before and we'll crush it again" - ⁠WW2 veteran Ken, 98, in the tank

🎉 @vaadin.com @ @devoxx.uk ! 🇬🇧 We’re excited to have a booth at Devoxx UK this week in London! Come by, say hi 👋, and discover what’s new with Vaadin.