Rowdy Rabouw
Front-End Focused Senior DevOps Engineer
Gouda, The Netherlands
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Rowdy Rabouw is a Google Developer Expert in Web Technologies with over 25 years of experience in HTML, CSS and JavaScript. Currently, he works as a Front-End-Focused Senior DevOps Engineer on Vue, Node, and NestJS projects, with a focus on usability and accessibility. Rowdy loves his electronic drum kit and dabbles in creating music on his laptop.
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Beats in the Browser - Coding Music with JavaScript
JavaScript is extremely versatile. We use it to build frontend, backend, desktop and mobile apps. But did you know you can even create music with it ?!
In this talk, I will show you how easy and fun it is to code your own music with the Web Audio API. As a bonus, he will throw in the Web MIDI API and Web Bluetooth API to really get the party started. Let’s turn up the bass!
A web for anyone, anywhere, anytime
The web is designed to be accessible by default, but we developers made a mess of it along the way. We exclude a large group of people, while the web is an intrinsic part of our daily lives.
In this talk, we will look at common mistakes and see solutions to improve your website for people with disabilities by using semantic HTML and ARIA attributes. We will also discuss practical examples of how to make websites more enjoyable and usable for every user.
Exploring the Power of Browser Storage
Web forms are the unsung heroes of user interaction. Whether signing up for a newsletter, making an online purchase, or submitting critical information, web forms are the gateways to countless online experiences. However, these forms often frustrate users, leading to high abandonment rates and missed opportunities.
Join me for a talk about creating better web forms. In this presentation, we'll explore the key principles and best practices that can transform your web forms from stumbling blocks into delightful experiences.
Mastering Web Forms: Designing for User Engagement
Web forms are the unsung heroes of user interaction. Whether signing up for a newsletter, making an online purchase, or submitting critical information, web forms are the gateways to countless online experiences. However, these forms often frustrate users, leading to high abandonment rates and missed opportunities.
Join me for a talk about creating better web forms. In this presentation, we'll explore the key principles and best practices that can transform your web forms from stumbling blocks into delightful experiences.
Fugu: Possibilities with Web Capabilities
The web platform keeps evolving, bringing a new wave of capabilities that blur the lines between web and native applications. Project Fugu, a collaborative effort by Google, Microsoft, and Intel, aims to expand the web’s capabilities by introducing powerful APIs that enable developers to create more feature-rich and performant web applications.
This session will explore how these innovations transform the web development landscape. Attendees will learn about APIs such as Clipboard, Picture-in-Picture, Web Share, Web USB, and Web Bluetooth.
Sing Along with Code: Building a Karaoke App with JavaScript
Unleash your inner rock star by creating a karaoke machine using JavaScript. I will guide you through building a fully functional karaoke application from scratch, leveraging JavaScript’s power and flexibility. We will integrate audio playback, synchronise lyrics with music, and create an engaging user interface.
Join me for a fun and educational journey into the intersection of music and web development, and test your singing qualities as well.
Navigating the HTML and CSS maze
HTML and CSS are constantly evolving, with new features being added regularly. In the last couple of years, exciting new features have emerged, like the dialog element, view transitions, and typed custom properties, which might overwhelm you and make you feel lost.
Together, we will explore these features and others with practical examples and code snippets. We will examine how they can enhance web development to create more performant, accessible, and visually appealing websites while reducing the need for JavaScript.
One Small Model for Chrome, One Giant Leap for Built-in AI
Discover how Google's Gemini Nano model is a breakthrough for AI in the browser. Like NASA's Gemini spaceflight preceded the Apollo moon landings, Gemini Nano is the stepping stone to an age of powerful AI running locally on every device, starting with Chrome.
This session will explore advanced AI capabilities, including text summarisation, image recognition, and intelligent text suggestions, available offline in Google Chrome. No cloud calls, no latency, and no data leaving your machine; just fast, private, and efficient AI right in your browser.
Level Up Accessibility Testing with Playwright
Accessibility is a core part of building inclusive, user-friendly products. However, many teams still struggle to test accessibility effectively. What if it were as easy and automated as your end-to-end tests?
In this talk, we'll explore why accessibility matters, how it impacts real users, and what the WCAG guidelines mean for developers. From there, you'll get a quick introduction to Playwright, Microsoft's end-to-end testing framework, and see how it can go beyond functional testing to catch accessibility issues early.
Warp Pipes and Prefetching: Navigating the Web at Mario Speed
Long wait times are the "Bowser" of the good user experience. Even if your site looks great, slow transitions or blank loading screens can make users feel like they’ve fallen down a bottomless pit. But what if your website could predict the future, stay resilient offline, and move between pages as smoothly as a Warp Pipe?
In this session, we’ll explore the "Power-Up" trio of modern web development:
- Speculation Rules API: See how prefetching and prerendering can load pages before users click.
- Service Workers: Find out how to build a caching layer so your assets are always ready, even when the network is out of "lives".
- View Transition API: Use animations to help users move smoothly through your "world map" with ease.
We’ll break down the technical plumbing required to make these APIs work nicely together. You will leave this session with the cheat codes needed to deliver a fast, seamless experience that will have your users saying, "Mamma Mia, that’s fast!"
WeAreDevelopers World Congress 2025 Sessionize Event
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