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René Wilby

@rene-wilby.de

Freelance senior software engineer, family father, music and coffee lover, European 🇪🇺, he/him. https://rene-wilby.de/en

285 Posts219 Follower245 Folgt
Nadia Makarevich@adevnadia.bsky.social · 8mo ago

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...

Bundle Size Investigation: A Step-by-Step Guide to Shrinking Your JavaScript

A practical guide to analyzing and reducing JavaScript bundle size. Learn bundle analysis, fix tree-shaking issues, remove duplicate libraries, and otherwise optimize your React app's JavaScript size.

developerway.com

Nadia Makarevich@adevnadia.bsky.social · 9mo ago

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 👇🏼

René Wilby@rene-wilby.de · 9mo ago

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!

Certificates.Dev@certificates.dev · 9mo ago

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

Win a React Certification Exam Voucher!

pemGet ready to validate your React skills – for FREE! 🎓/embrbrTo celebrate our upcoming a target="_blank" rel="noopener noreferrer" href="https://certificates.dev/react/free-weekend"strongReact Free Weekend/strong/a, we’re giving away a target="_blank" rel="noopener noreferrer" href="https://certificates.dev/react"strongone React Mid-Level Developer Exam Voucher/strong/astrong!/strongbrbrPrize Includes:br✅em /emstrongMid-level React Exam Voucher/strong-em Your access to take the Certified Mid-level React Developer exam./embr📘em /emstrongPreparation Guide Access/strong em- A comprehensive curriculum that covers all topics required to pass the exam with confidence./embr💬em /emstrongDiscord Community Access /strongem- Join a community of developers to ask questions, share insights, and get expert advice while preparing to get certified./embrbrWhether you're just starting out with React or already have experience, this is your chance to strongprove your skills and earn recognition/strong from the only a target="_blank" rel="noopener noreferrer" href="https://certificates.dev/react"strongReact certification/strong/a program designed by experts for developers like you./p

go.certificates.dev

René Wilby@rene-wilby.de · 11mo ago

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.

Catherine Edelveis@edelveis.dev · last yr.

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😉

Catherine Edelveis@edelveis.dev · last yr.

👾CyberJAR Live: All-in on full-stack? This Wednesday, @vaadin.com Champion @rene-wilby.de and I discuss what full-stack really means. Expect pros and cons, challenges and growth receipts, burnout guards, and AI-era skill must-haves. Come bring questions and stories! www.youtube.com/watch?v=tqga...

René Wilby@rene-wilby.de · last yr.

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...

Choosing the JVM that powers your Vaadin application | Vaadin

Discover the best JVMs for Vaadin apps. Compare memory usage, GC performance, startup time, and scalability for cloud and container deployments.

vaadin.com

René Wilby@rene-wilby.de · last yr.

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.

JCON Conference@jcon.one · last yr.

Our next #JCON2025 session is live: '#Java developer-friendly frontends: Build #UIs without the #JavaScript hassle' with Jago de Vreede Have you ever needed to build a #UI as a #backend #developer but didn’t want to … Grab your coffee and hit play: youtu.be/voxFwPkVgPA #JCON #productivity