iiinova — where your digital self keeps evolving

Serhii Kulykov @iamkulykov.bsky.social · 06/10/2026

New series: A11y Memoirs! My stories from years of building accessible web components at @vaadin.com. Episode 1 is about vaadin-button: Shadow DOM, focus, tooltips, screen reader issues and lessons learned. dev.to/webpadawan/a... #WebComponents #a11y #accessibility #DesignSystems

dev.to

A11y Memoirs, episode 1. The Story of Vaadin Button

How Vaadin Button evolved from wrapping a native button to an accessible web component, and the subtle NVDA issues we fixed along the way.

010

Reposted by Serhii Kulykov

Michael Warren @michaelwarren.dev · 05/10/2026

What if there was a Web Components conference?? @stuffbreaker.bsky.social and I are teaming up to get a little more serious about the idea of getting one together. We want to gather data on if there is interest in the community forms.gle/ZGqtYGj7V6q8... Please fill out and share to anyone!

forms.gle

Interested in a Web Components conference? Let us know below!

Web Components folks have been semi-seriously talking about organizing a conference for years, and with the ecosystem in a real moment of growth and popularity, it's about time! This form is our firs...

65732

Serhii Kulykov @iamkulykov.bsky.social · 05/10/2026

Vaadin web components now have #a11y statement published on GitHub! Check it our to learn how we develop and test our design system based on the set of accessible #WebComponents built with Lit @lit.dev github.com/vaadin/web-c...

screenshot of Vaadin web components repository overview with "Accessibility" statement next to "Contributing" and "Security"

000

Reposted by Serhii Kulykov

Justin Fagnani @justinfagnani.com · 23/09/2026

Firefox's new design ships September 29. And did you know... The Firefox UI is built with Lit? A web browser built with web components! 🔥

28613

Serhii Kulykov @iamkulykov.bsky.social · 23/09/2026

Vaadin 25.3.0 is released: 🚀 2 new components - Breadcrumbs and Switch 🎨 DatePicker disabling and styling individual dates ⌨️ SplitLayout a11y and keyboard resizing support 📢 Grid i18n for better screen reader announcements Try it out in your projects! github.com/vaadin/web-c...

github.com

Release v25.3.0 · vaadin/web-components

API Documentation → Changes Since v25.2.0 💥　Behavior Altering Changes a11y-base ⧉ Treat elements with tabindex=-1 as focusable (#12127) context-menu,grid ⧉ Remove cell focus on mousedown worka...

011

Serhii Kulykov @iamkulykov.bsky.social · 17/12/2025

📢 We've reached an important milestone at @vaadin.com: Vaadin web components 25.0.0 fully based on @lit.dev instead of Polymer are finally released as stable! github.com/vaadin/web-c...

Vaadin web components 25.0.0 stable release notes

0132

Reposted by Serhii Kulykov

Vaadin @vaadin.com · 11/12/2025

Vaadin 25 is almost here! To mark the milestone, Senior Software Engineer Serhii Kulykov looks back at 8 years of Vaadin components: the key decisions behind versions 10, 14, 22 and 25, and what we’ve learned about stability, accessibility, and simplicity along the way. vaadin.com/blog/what-it...

vaadin.com

What it takes to build a set of Vaadin components | Vaadin

An inside look at eight years of building and refining Vaadin components: what went well, what we changed, and how we keep shipping better major releases.

041

Serhii Kulykov @iamkulykov.bsky.social · 10/12/2025

Published a blog post about 8 years of building Web Components at @vaadin.com and the lessons learned along the way. It's been a great journey so far! And by the way, today we have reached Vaadin 25 release candidate. vaadin.com/blog/what-it...

vaadin.com

What it takes to build a set of Vaadin components | Vaadin

An inside look at eight years of building and refining Vaadin components: what went well, what we changed, and how we keep shipping better major releases.

000

Serhii Kulykov @iamkulykov.bsky.social · 01/09/2025

Most of the logic we added on top of Lit was actually needed to reuse mixins extracted from our Polymer based components. Over time we'll improve the code to use Lit lifecycle callbacks, e.g. updated() for property observers.

010

Serhii Kulykov @iamkulykov.bsky.social · 31/08/2025

Using Lit provides a lot of benefits related to not having to write boilerplate code for reactive properties, attributes etc. We do have a few vanilla custom elements used internally though.

110

Serhii Kulykov @iamkulykov.bsky.social · 27/08/2025

10 years of building Web Components at @vaadin.com: celebrating the "anniversary" of <vaadin-combo-box>! Check out this blog post to learn about our journey and how we finally migrated to @lit.dev: dev.to/webpadawan/1...

dev.to

10 years of building Web Components: the story of <vaadin-combo-box>

A story about building Vaadin web components

2204

Reposted by Serhii Kulykov

Passle ☭ @passle.dev · 20/08/2025

Neat, looks like MDN's new frontend is built with @lit.dev

2498