Faris Aziz

We’ll cover real-life examples of how to handle complex data fetching scenarios using modern web tools.

Zurich JS Meetup Relaunch: Talks, Lightning Sessions, and Networking

Solving Real World Data Fetching Challenges with Next.js and TanStack Query: A Pragmatic Case Study 

What's all the hype with 'Vibe Coding'? How did it help me ship ZurichJS at lightning speed ⚡

In this lightning talk, I'll share how I created the entire ZurichJS platform in under 2 hours using AI assistance. Turns out you don't need to be in a Silicon Valley garage with lo-fi beats playing to achieve the mystical "vibe coding" state!

I'll walk through my journey from skeptic to convert as I built a full-featured platform including:

- Next.js with those fancy animations everyone loves 💫
- Backend infrastructure that actually works
- Sanity CMS integration (because content is still king)
- SEO-optimized pages (Google still exists in the vibe coding era)
- Analytics tracking (because what even happened if you didn't track it?)

No fancy prompts or "I whispered to the AI and magic happened" stories, just honest reflections on how my development approach evolved and what I learned by embracing this trend to get pragmatic with shipping things fast.

For developers wondering if "vibe coding" is just another buzzword or actually useful, come hear from someone who's shipped real code both ways! 🚀

Zurich JS Meetup #3: Revitalizing JS spring season

From Traditional Dev to the ZurichJS platform in 2 Hours: My Accidental Journey into 'Vibe Coding'

The ZurichJS platform is evolving. We’ve been working on new features to make things smoother, smarter and a bit more fun. In this lightning talk, I’ll give a quick peek at where things are headed and what’s coming next. 

Zurich JS Meetup #4: April stands for AI

ZurichJS Platform: Looking Ahead

Every developer has lived their own version of “it worked on my machine.” Mine involved a client who stayed after a CrossFit class so I could debug a broken payment flow with them, outdoors, on their laptop, armed with blurry WhatsApp screenshots and bug reports that made no sense. I even found myself explaining how to open the browser network tab to someone who’d never seen DevTools. In this talk, I’m bringing that same 2020 app back to life, a weekend React-and-Rails project held together by hope, to see how we’d tackle those same problems today. We’ll look at how modern full-stack session recordings and AI-assisted IDEs turn that chaos into context in a world where we now ship vibe-coded apps faster than ever.

ZurichJS Meetup: 1st Anniversary Special Edition

It Worked on My Machine: Debugging Without the Screenshot Olympics

Raycast lets you turn your workflow into keyboard-driven magic. In this quick talk, I’ll walk through how I built the official Smallpdf extension in a night:

- What makes a good Raycast extension
- The basics of the Raycast API
- How to build, test, and publish one
- Lessons learned from shipping a real tool

Zurich JS Meetup #5: May the Code Be With You

Building Raycast Extensions: Fast, Useful, and Actually Fun

We love this community. ZurichJS is all about the people, the moments, the vibe. And Enrique, our photographer, captures it beautifully. We’ve got hundreds of incredible photos and videos from past meetups—but for months, we didn’t have a good way to show them off. We wanted to, we just didn’t have the time to build something that would do it justice.

Then I went to CityJS London and saw a live demo from the ImageKit team. They dropped into a Next.js project and had real-time, responsive, optimized media flowing in minutes. I had a chat with them right after. I asked, “Could I get this running for ZurichJS in a weekend?” They said yes—and we did it.

In this talk, I’ll walk through:

- Why our old static image setup wasn’t cutting it
- What limitations we hit with Next.js asset handling
- How we rebuilt the ZurichJS media experience using ImageKit
- What worked, what didn’t, and what surprised us

And the best part? The ImageKit team will join us live at the end for a quick-fire 5-minute Q&A, so you can pick their brains directly and see what’s coming next.

Pro Zurich JS Meetup #7: Sizzling hot JavaScript

Rebuilding the Soul of the ZurichJS Platform: Media-First Frontends with ImageKit

Staff Software Engineer at Smallpdf | Conference Speaker | Workshop Instructor

Aleksej Dix

Accessibility isn’t optional—it’s essential. In this talk, we’ll showcase why accessibility matters

Zurich JS Meetup #2: New Year, New Talks!

The future of Accessibility with the EAA (feat: Allyship)

AI-powered agents are changing how we identify and fix accessibility issues on the web. This talk will explore how Allyship.dev uses AI-driven agents to scan, analyze, and detect accessibility violations in real time, helping developers and businesses stay compliant effortlessly.

What You’ll Learn:

- How AI agents navigate and audit websites for WCAG violations

- The role of automation in detecting keyboard traps, missing alt text, and poor focus management

- How AI agents analyze DOM changes to dynamically catch accessibility issues

- The future of AI-powered accessibility audits

Join us to see how AI is revolutionizing accessibility testing and making web compliance faster and smarter!

How AI Agents Detect Accessibility Issues

A quick hands on demo of how to audit your website with Allyship and get it primed for the European Accessibility Act!

Vue Meetup reboot

Accessibility Audits with Allyship

Founder of Allyship.dev

Christian Wörz

Get ready to embark on a journey into the depths of TypeScript. We'll be exploring the often overlooked, yet powerful, features that lie beneath the surface of this versatile language.

But we're not just talking theory here – this exploration will be a hands-on experience. Each feature will be brought to life through real-world examples, all done in a live coding session. Join in as we shine a light on these secret TypeScript treasures and discover how they can elevate your coding skills to new heights. Recursive types, type permutations and a css validator written in typescript are just three of the cool topics we are going to cover during this talk.

A Deep Dive Into Advanced TypeScript: A Live-Coding Expedition

The rapid pace of AI development can make it feel like everyone else understands what’s happening, while you’re falling behind. New models, tools, and buzzwords appear almost daily, creating pressure to “keep up” with everything at once. In this lightning talk, I’ll argue that this feeling is not only common, but completely normal and often unnecessary.

ZurichJS X Stripe: Navigating Payments in the new year

You’re Not Behind: Why Feeling Lost in AI Is Normal

One of the most important building blocks in any JavaScript runtime is the eventloop which enables developers to write performant code, even single-threaded. 

But many developers do not look into how it works because it looks really complicated and hard to understand. In this talk we will discover how the eventloop works, how one can use it to ones advantage and how it works with Promises, Timer-Events and Web-Apis. 

All easily understandable and done in Live-Coding.

ZurichJS Pro: May the Source Map Be With You

The Eventloop Demystified

Expert Fullstack Engineer 👨‍💻 | Microsoft MVP 🔷 (Web Dev & Dev Tools)

Bogdan Ilie

Let's quickly test our knowledge of JavaScript and get some reminders of its quirks.

JS Quickfire - a friendly pop quiz

Creative Front-End Web Engineer | Design-focused

Hugo Sousa

Introduction to sst.dev, which allows you to define your cloud infrastructure as typescript code.

Agenda:
- What is Infrastructure as code
- Why I believe this is the best in class tool
- Demo including live lambda

All down to the types

Infrastructure as (typescript) code

Software Engineer

Elian Van Cutsem

In this talk, we’ll explore building full-stack web applications powered by Astro, Astro Actions and Astro DB. We’ll start by discovering the basics of Astro, why and where it’s useful, and how to build a web applications with it. We’ll discover how to use Astro’s new default hybrid rendering mode to add API routes and dynamic server-side rendering to the application. Then we’ll dive into Astro DB, a simple, yet powerful ORM used to communicate between a LibSQL database and your Astro application. Also, Astro 5.0 has been released, we’ll round up the talk by looking at how we can combine all of these features with a powerful headless CMS like React Bricks.

Insanely fast to production using Astro

Lead DevRel at React Bricks | CTO at Vulpo | Astro Maintainer | devs.gent meetup organiser

Bert De Swaef  

Why do so many projects frustrate the developers working on them? In this talk, Bert tells the story of Frustrated Bob, a developer dealing with shifting priorities, vague requirements, and broken communication. It’s a sharp, honest look at why things go wrong on teams and what we can do to make them better. Expect practical takeaways, real examples, and some darkly funny moments every developer will recognise.

Frustrated Bob

Owner, Founder at Vulpo Digital Studio

Indermohan Singh

JSON is everywhere: in API responses, config files, hard-coded data, and everything in between. Yet we rarely validate our JSON properly. Working with unstructured JSON often leads to subtle bugs that are hard to debug and even harder to prevent.

But here's the good news: JSON has a secret weapon: a schema.

In this talk, I’ll introduce JSON Schema and show how you can use it to:

Define clear, reusable data structures
Validate your JSON data
Share schemas across apps or teams as a contract
Keep things robust without adding too much overhead
Whether you're building a complex app or just trying to keep your config files sane, this talk will help you level up your JSON game with just the right amount of structure. 

ZurichJS Pro Meetup: H(a)unt the gaps in your Apps

JSON Got a Secret Weapon: A Schema

Senior Developer Advocate for Dynatrace Apps | Developer | Musician

Matteo Collina

Deploying Node.js at scale is an art mastered by few. The most common problem is an exhaustion of resources that allows the application to denial of service itself. The result is Node.js systems that are massively overprovisioned, wasting enormous amounts of computing and memory - keeping most of them idle.

In this talk, we will do some math, discover hard truths, and implement a fix.

Pro Zurich JS Meetup #6: June's server solstice

Do not thrash the Node.js Event Loop

Co-Founder/CTO @ Platformatic - Node.js TSC member - Fastify Lead Maintainer

Nico Martin

Al is the next big thing. Machine learning models are interpreting the world and generative Al is taking over more and more of our tasks. And this makes us increasingly dependent on the big Al providers. What if we could use all this magic directly on our devices? Maybe even directly in the web platform, the largest platform for applications that has ever existed?
With WebAssembly and WebGPU, we have the tools to make all this possible.
It's time to get ready for some unexpected examples of how to use Al in the browser!

From ML to LLM: On-Device AI in the Browser 

Frontend Developer and Google Developer Expert for Web Technologies and AI

Stéphane Turquay

Expanding globally doesn’t just mean translating your product. Payments are where growth ambitions meet hard reality. At Smallpdf, we discovered this first-hand while serving millions of users across markets with very different expectations.

In this talk, I’ll walk through the real lessons we learned about payment localization: why adding Alipay was a no-brainer, how currencies and billing defaults shape conversion, and what happens when you try to roll out localized pricing. I’ll also share our experience migrating from Braintree to Stripe, and how payment orchestration became a necessity, not a nice-to-have.

Pro Zurich JS Meetup #8: Flare up your Performance

Beyond Translation: The Hard Truths of Payment Localization at Scale

Principal Product Manager @ Smallpdf

Jan Nicklas

Next-Yak: CSS-in-JS without the Runtime

Frontend Lead

Kitze

Focus on the right things, reduce FOMO, start enjoying web development.

Navigating the hype driven world of frontend dev without going insane

Developer | Creator | Educator

Jan Hesters

We’ll explore how AI is moving beyond mere assistance to become a full-fledged partner in software creation. So it will be a quick glimpse how you can use metaprogramming or direct transpiling of pseudocode to transform the way you build and think about software.

A.I.D.D. (A.I. Driven-Development)

CTO @ ReactSquad & SocialKit

Juliette Wang

How come there's no built-in to expose DOM control to arbitrary code - or at least not safely? Is it even possible?
In this talk, I will cover all of the pathways I discovered in a quest to extensive modularity.

Exposing a part of the DOM to arbitrary code

Student

Salih Güler

True story: I was building an AI agent for Hacker News and realized I needed a way for people to sign up for updates. One coffee break later, I had a complete serverless newsletter registration platform that would allow me to send automated emails.

Join me as I guide you in twenty minutes to create an infrastructure that would be applicable to many use-cases to get information, save them and use that to automate tasks by using AWS' JS SDK.

How I Built a Serverless Newsletter Registration System During my Coffee Break

Senior Developer Advocate, AWS

Adam Berecz

Not all forms are created equal. We'll explore the key differences that set them apart and discover how to drastically reduce development effort when traditional coding methods fall short.

From Object to Interface—Serialized Forms with Vueform

Founder of Vueform

Wout Mertens

The bar for high-performing websites keeps rising, and it's a critical factor for both user experience and search rankings. While achieving good scores is possible, it often requires significant effort and ongoing maintenance.

In this talk, I'll show how Qwik makes it easy to achieve top web metrics, automatically, even as your application scales.

We'll dive into Qwik's optimizer, explore the power of resumability and JS streaming, and uncover how its reactivity system works to deliver blazing-fast web experiences.


Qwik Go For 💯

Head of Product at StratoKit SA | Qwik Core Contributor

Colin Schwarz

As a developer you come across amazing 3D experiences and probably wonder how difficult it might be to build something similar on your own.
I want to show how you can do those 3D experiences in Vue using TresJS.

TresJS is an open-source library that provides a declarative way of using Three.js in Vue. It allows you to build your scenes using Vue components with all the power of Vue's reactivity. 

Intro to 3D with Vue and TresJS

Senior Software Engineer

Jens Rømer Hesselbjerg

Short practical example of integrating Bluesky comments into your Astro blog posts, featuring client-side rendered Solid JS.

Bluesky, Astro and Solid JS walks into a bar

Luca Christen

I will show you my currently favorite stack to develop full-stack applications in Next.js. I use Drizzle to set up my database schema and infer the zod schemas for validation with drizzle-zod. Then I use the Zod schemas with tRPC and React Hook Form to enable end-to-end type safety and validation without code generation. All with properly inferred TypeScript types, runtime validation and great DX.

After I explain the stack, I'll give a short demo where I change a field in the database schema and the validation rules propagate from database to the form. Additionally, I'll show another case where a change on the DB leads to a TypeScript compilation error in the frontend.



One Schema to Rule Them All: End-to-End Type Safety with Drizzle, Zod and tRPC

Łukasz Nowak

During this presentation I’d like to talk you through a topic of load testing. There are several types of them, so I’ll quickly describe their nature and provide questions they are supposed to give an answer to.
Although there are several tools for load tests on the market, I will advocate for the one I’ve been playing with for some time - K6. This is due to the fact it’s very intuitive - a developer is able to write the simplest test case in a matter of some-teen lines of code. And most importantly, it's all Java Script!
As it’s an introduction level only, I don’t go deeper into the topic. That's your homework if you'll find it interesting. I just share some real use cases for an everyday developer.

ZurichJS X VDZ: Warm Up

An introduction to load testing

Vanilla Coffee Developer

Harshil Agrawal

Serverless architectures offer scalability and cost benefits, but managing application state remains challenging. What if you could spin up a tiny server for every user with the same cost and scalability benefits? A server for every user, in a serverless architecture sounds new, right?
In this talk, I’ll introduce you to Durable Objects and help you understand the new paradigm of building stateful serverless apps. You will learn about the various benefits like low latency, faster database operations, and handling states for your serverless app.

A server for every user: Build serverless apps with Durable Objects

Developer Educator @ Cloudflare

David Joos

In this talk, we will explore existing and novel approaches for selling goods globally. We will look at what the international payments landscape will look like in 2 to 3 years and how it is shifting from standard cards to a complex mix of local payment methods and stablecoins. You will learn why this complexity makes engineers essential to the future of payments and how you can help optimize global transactions.






No Code, No Commerce: Why Developers Are Essential to the Future of Global Payments

Solution Architect

Ewa Gasperowicz

Unblock your productivity with Chrome Devtools and improve your developer life with every line of the inspected code.

Chrome Devtools tips & tricks

Senior Developer Relations Engineer at Google

Thomas Rubattel

Live coding session combining various TypeScript concepts, like generics, pattern matching, tail-recursion, conditional type.

Type-level programming in TypeScript

Frontend developer

Evangelia Mitsopoulou

Flying in from Thessaloniki, Greece, Evangelia will share insights on how serverless workflows simplify backend complexity, the practical challenges and best practices for integrating serverless APIs, and show a live demo of rapid prototyping with serverless tech

Reimagining Frontend Development in the Serverless Era

Founder of Evangelia

Rimas Krivickas

Introducing the JavaScript Temporal API - a long overdue improvement to how developers work with dates and times. This talk will show you how Temporal API makes time calculations simpler, safer, and more intuitive, and why it’s a game-changer for JavaScript development.

It's About Time...

Principal Software Engineer

Andriy Pokrovskyi

AI Content Creator | Full-Stack Dev | Flutter & Dart

Alex Suzuki

Alex shares real-life lessons from his journey through multiple forms of self-employment — from freelancing and running a small agency to building and marketing his own product. You’ll get honest insights, practical tips, and a clear-eyed look at the ups and downs of each stage.

The core themes covered:

- Making the leap: transitioning from full-time employment to self-employment
- The ups & downs of self-employment, tips for success
- From client work to building your own product, a.k.a. ‘Living the dream’

Whether you're seriously considering quitting your job or just curious about what it’s really like to go independent, this talk is for you.


Carving your own path: a builder’s journey

Solopreneur | Author of STRICH (Barcode Scanning for Web Apps) | Father of two

Rahul Nanwani

Video is everywhere on the web, from hero banners to product videos to full-blown streaming. However, while Lighthouse reports issues related to images, scripts, and more, it doesn't really address video performance. That means streaming can suffer for end users, resulting in buffering and slow starts, while businesses incur huge data transfer costs due to unoptimized delivery.

In this talk, we'll explore some quick wins every developer should know: optimizing videos size and format, optimizing streaming for every device and network, and different video loading strategies to improve performance. You'll leave with a toolkit to make your videos load faster, play smoother, and feel as polished as the rest of your app, closing a significant gap that performance audits often overlook.

Video optimization for the web: The Missing Piece in Lighthouse

CEO @ ImageKit.io

Savas Vedova

In this talk, we’ll dive into simplifying cloud deployments with Stormkit, tackling the challenges of complex setups and rigid hosting platforms. We’ll start by exploring how Stormkit enables deployment on a single VPS in just minutes, perfect for developers seeking efficiency.

Then, we’ll demonstrate how Stormkit seamlessly integrates with private cloud resources like AWS lambdas and S3, offering control and flexibility. Through a hands-on demo, you’ll see how to build, deploy, and own your cloud infrastructure with ease. Join me to learn how Stormkit empowers to streamline workflows and take charge of your hosting!

Stormkit: Build, Deploy, and Own Your Cloud

Staff Frontend Engineer at GitLab | Founder at Stormkit

Markus Walther, PhD

You think reactivity needs frameworks and build steps? I'll show you how a tiny open-source web component is all you need to make any HTML reactive. From a concise counter example to the fastest DBMonster, demos will underscore its elegance and real-time performance. What will YOU build with it after the talk?

Reactive HTML with <sig-nal>

Expert Frontend Engineer

Calum Gathergood

Have you ever got a last minute feature request? Was it the last working week of the year? One day before a code freeze? And on multiple different codebases?

Maybe not... but in this talk I'll go through a very real example of how I managed to ship a feature to 4 codebases just in time for Christmas.

Using Claude Code I was able to deliver the same feature on Web, iOS, Android and React native. I'll share some tips and tricks on how to optimise your agentic coding skills to deliver across the stack.

Cross Platform Frontend Development with Claude

Bogdan Kolesnyk

The talk covers and extends this article, with some live examples
https://medium.com/valtech-ch/monorepo-semantic-releases-db114811efa5

In nutshell: how to cook semantic versioning in mono-repository managed by Turborepo in the efficient and traceable manner, unlock CI/CD.
Tech covered:
- Turborepo
- NodeJS
- Github Actions

Monorepo Semantic Relases

Principal Software Architect

Daniel Barrera Thümmler

This is a 5 min replica to Bert De Swaef’s talk where I share my personal view of how "Frustrated Bob" could address the frustrating shifting priorities, vague requirements, and broken communication.

I call it the power of "alignment", "shared understanding" and the "bigger picture". A powerful mix of ideas that clear a path forward for the group, overcomes the need of consensus and allows of decoupled team-work even before going into the scrum machinery.

These ideas might be the way to empower Bob to overcome the feelings of helplessness and isolation making what seemed out of his control, under his control.

Blissful Bob

Software Engineering Manager

Dan Neciu

We built a product fully on TanStack Query and skipped adding a state management layer. It worked for a while, then it broke in ways we didn’t expect.

This talk dives into how TanStack Query works, what we got wrong, and how to use it properly. From missing optimistic updates to confusing server and client state, we’ll break down the lessons learned and what patterns actually scale when your app grows.

How Not To Use TanStack Query

Staff Software Engineer

Samir Akarioh

Your application works great in development but what happens when real users flood in? Will it handle the load, or will it crash under pressure?
What You'll learn:

- What is load testing
- How to load test your application
- Understand the report that Gatling generate
- Get some load testing tips

Join me to see how Gatling help you to scale efficiently when your website need it the most

Load Testing with Confidence: Integration of load tests in CI/CD

Developer Advocate @ Gatling

Victor Nitu

The Model Context Protocol (MCP) is a foundational layer for enabling interoperable, AI-native systems. In this talk, we’ll explore how to implement MCP servers and clients in JavaScript, focusing on the core structure of the protocol and how to enable communication between models and tools. Through practical examples, you’ll learn how to serialize context, handle events, and wire up components that speak the same protocol. If you're building AI tools or looking to integrate with model-driven ecosystems, this session will help you get started with MCP the right way.

Implementing MCP in JavaScript

AI Engineer

Dani Coll

Do you lie awake at night wondering if your app could be compromised? Have you ever questioned how safe the apps you ship using the React ecosystem really are? Do you know to which types of vulnerabilities are you exposed when those security systems are not in place? In this talk, we'll explore a guinea pig web app to explore the threats that could easily affect your own projects.

Our Amazing Speakers

Past & Upcoming Speakers