Sessions

Chat interfaces are everywhere, but they're still stuck with text-only interactions. In this hands-on full-day workshop, you'll learn how to build real, interactive React components that live inside conversational interfaces using MCP-UI. You'll [...]

Come and learn how to build your own MCP server and connect it to an AI coding agent. I will provide starter repos in popular languages and advice on how to approach MCP [...]

In this keynote we are having a critical look at how the web went wrong. How we went from using common and open protocols to create a rich digital culture, to an environment [...]

Stop theorizing and start doing. This hands-on workshop takes you through the complete lifecycle of implementing a practical AI solution, from business case to deployed model. Working in small teams, you'll tackle a [...]

Stop theorizing and start doing. This hands-on workshop takes you through the complete lifecycle of implementing a practical AI solution, from business case to deployed model. Working in small teams, you'll tackle a [...]

Have you ever felt perplexed by CSS, struggling to understand why the browser put the element where it did, and why it didn’t just follow the clear instructions you wrote? Do you think [...]

Frontend developers spend hours debugging production issues with console logs and DevTools, but when users complain that “the app feels slow” or “the API keeps failing,” those tools are not enough. Modern apps [...]

"Your solution sucks!" We've all heard something like this at work. How did it make you feel? And the last time you needed to criticize a colleague's work, did you handle it as [...]

The Internet seems to be always-on, for everyone, all the time. But what if it isn't ? What if you're in a location where Internet is spotty, either as a provider of a [...]

Frontend development is defined by constant change. Frameworks, tools, patterns, opinions, and design requirements continue to evolve or reappear in new forms, forcing developers and teams to adapt while still delivering value. In [...]

Whether you're building APIs, deploying microservices, or just curious about what happens beneath the surface of your applications, understanding networking is essential. This talk explains the core concepts of networking - from the [...]

We've all been there: After a lot of discussion the team can still not agree on a given solution. A majority vote makes the decision, but that leaves team members unhappy and unsatisfied. [...]

Every great RPG has side quests. Some people skip them, racing toward the final boss battle. But those who take the time to explore, help others, and build connections unlock skills, allies, and [...]

Ever felt like your Git history is the scene of a gruesome crime? Have you ever seen commits so messy they should be classified as felonies? In this darkly humorous session, we’ll explore [...]

Explore the power of advanced TypeScript features by bringing hardware to life! In this talk, we’ll bring hardware to life using TypeScript and an Arduino, transforming sensors, servos and LEDs into a playground [...]

Object oriented programming is no silver bullet, like any other paradigm. So, how to pick the right one? You simply don't. Modern programming languages are slowly adopting multiple paradigms, and for good reasons. [...]

JavaScript has a reputation: unpredictable, quirky, sometimes infuriating - and yet it powers the modern web like nothing else. But here’s the twist: most of the “weirdness” is intentional. In this session, we’ll [...]

C2PA (Coalition for Content Provenance and Authenticity) helps combat deepfakes by providing a trusted standard for content provenance. It allows creators and platforms to cryptographically sign media at the point of creation and [...]

When multiple teams across different domains and languages build APIs, it’s only a matter of time before standards diverge—different naming conventions, different ways of working, and different approaches to security. Everyone has the [...]

Introducing WhatsApp as our first channel in a new messaging domain turned out to be less of a technical project and more of an exercise in product strategy, diplomacy, and learning just how [...]

This talk explores how users interact with websites and how developers can make those interactions accessible to everyone. Using practical examples, such as converting an inaccessible hover menu or carousel into accessible versions, [...]

In a world where loneliness is an epidemic and human connection feels increasingly elusive, could artificial intelligence be the answer – Are ‘friends’ truly electric?” In 1979 synth-pop legend Gary Numan asked the [...]

This is a practical, hands-on workshop. We start from a tiny, messy codebase and improve it step by step. We’ll replace `any` with real boundaries, use `unknown` + simple type guards, model flows [...]

In this talk, the speaker will introduce a modern approach to software design — one that strikes the right balance between automation and simplicity. The session will explore real-life scenarios, uncover common issues, [...]

This half-day workshop is about learning to work with Claude Code. You will not be learning magicly pulling miracles out of a mysterious black box... You will discover how to use it as [...]

In the times of microservices, it becomes clear how important Domain-Driven Design (DDD) still is. Only with strategic design (i.e. DDD on a large scale) and the division of the domain into bounded [...]

Server-side rendering (SSR) is back in the spotlight-and React is evolving fast. In this workshop, we’ll go deep into the mechanics, performance trade-offs, and modern techniques of SSR with React.js. You'll start by [...]

Most frontend developers excel at implementing beautiful interfaces, but struggle with the "why" behind design decisions. This focused workshop gives you essential UX fundamentals that directly impact your development work - no coding [...]

User experience is critical, so why wait for our users to encounter issues? You might have monitoring, but monitoring depends on user interactions. So, if you want to see issues before your users [...]

In the times of microservices, it becomes clear how important Domain-Driven Design (DDD) still is. Only with strategic design (i.e. DDD on a large scale) and the division of the domain into bounded [...]

User experience is critical, so why wait for our users to encounter issues? You might have monitoring, but monitoring depends on user interactions. So, if you want to see issues before your users [...]

Most frontend developers excel at implementing beautiful interfaces, but struggle with the "why" behind design decisions. This focused workshop gives you essential UX fundamentals that directly impact your development work - no coding [...]

NOTE: This is the same talk as in room 2, live streamed from that room, in case too many people choose this session. We're in a world where the lines are blurred between [...]

We've all heard the hype. Machine Learning is cool! Machine Learning is Rad! It'll change the world! End Poverty! Get George R R Martin to finally finish Game of Thrones! What actually is [...]

In this talk, we'll dive into the exciting world of Gemma, a groundbreaking family of open AI models by Google. We'll explore how you can leverage Gemma's capabilities to build innovative Mobile and [...]

We're in a world where the lines are blurred between human and machine intelligence, one where we need to build a harmonious relationship through experience. In his talk we'll explore how Humans and [...]

The AI era is here, and it's time to master the art of integrating it into your Android, iOS, and Web applications. In this workshop, we’ll explore all possible ways to connect AI [...]

I will present a case study on how we optimized our application to be both fast and resilient, even with queries involving multiple terabytes of data. There's nothing new or magical here—just "boring [...]

If an autopilot fails, or a weapon system malfunctions, lives can and will be lost. As a result, significant checks, practices and concepts go into designing the software for such systems. But the [...]

PHP 8.4 brings powerful new capabilities for HTML parsing and DOM manipulation that make working with web content significantly easier. This session demonstrates how to use these new features in PHP to build [...]

Writing secure code is important to prevent your users' data from being stolen. But vulnerabilities in your code can be difficult to spot and will not always be picked up during manual code [...]

Most of us are familiar with HTTP, but when it actually comes to creating cacheable web applications, there is still a lot to be learned. In this presentation I will show you how [...]

When users click "Submit" twice, what happens next could make or break your application. Idempotency ensures repeated API calls produce consistent results, saving systems from duplicate charges, mismanaged resources, and confused customers. This [...]

The idea of isolating services into containers revolutionized the IT world. And while containers are here to stay, most container images in use today are gigantic in size, contain unnecessary even dangerous components [...]

Learn how we created a serverless, fault-tolerant, event-driven ticketing platform on AWS. We will cover the reasons behind the decision of building this platform from scratch ourselves, the architecture of the different components, [...]

In the world of software development, programming languages and frameworks are more than just tools—they can become badges of identity and sources of near-religious devotion. In this talk, we explore how developers often [...]

Having to manage “legacy” applications is an inevitable step in the life of developers, especially when they are critical to the business. Over the years and the many changes made to the code, [...]

There are revolutions afoot that you may not even be aware of. When many like to shout that PHP is dead, many of us know that it comes from a reputation of yesteryear. [...]

Started in 2017, Bref is an open-source project that helps run PHP serverless on AWS. Today, Bref is used by thousands of companies and handles over 10 billion requests and jobs each month. [...]

Passwords are a thing of the past. Meet Passkeys, a new passwordless authentication standard that enhances security and user experience across platforms. This session explores WebAuthn integration for websites and apps, guiding you [...]

In this talk I explain how to use Xdebug to get more productive writing PHP code, focussing on the improvements in Xdebug 3.2 and 3.3, and the upcoming 3.4, to make the debugging [...]

Everyone! You will always remember this day as the day that changed your perspective on security and UI/UX. Today, we set sail to discover the hidden treasures of these two islands. How many [...]

Modern PHP applications often rely on multiple external services via HTTP, especially with the rise of AI tools like OpenAI. However, PHP’s single-threaded nature forces your application to wait for each response, creating [...]

In recent years, the ways that we can deliver HTTP has improved in occasional leaps, from 1.0, 1.1, a big step to 2.0, and now 3.0. One of the biggest obstacles has been [...]

A deep dive into the trenches of software engineering, revealing how teams can diagnose, strategically refactor, and resurrect legacy codebases plagued by technical debt. Learn from real-world case studies that showcase diagnostic techniques, [...]

Writing software is just one part of the delivery. In this talk Berry Langerak will take you through the years and the various deployment strategies that have existed over time, highlighting their benefits [...]

I tell you the story about why and how I wrote a package called tempest/highlight (https://github.com/tempestphp/highlight). A fast and extensible code highlighter for the web and terminal, written in PHP. When I was [...]

"I can't reproduce it," "we'll need to add logs," "we can't test that in staging," "it seems to have been broken for a while," "it works locally," ... If you hear these phrases [...]

This talk goes into the details of being an open source maintainer and the things that go along with it. It goes into the problems do they run into, which tools does GitHub [...]

As PHP developers, our ecosystem has a very low barrier to entry compared to other languages. Pretty much any shared hosting provider allows you to start building your dreams. On the other hand, [...]

Ever faced a heavy computational task and thought, "Maybe PHP isn't the right tool for this"? Think again! With `ext-parallel`, multithreading is a reality in PHP. In this session, I'll show you how [...]

In this high-speed session, I will unveil the secrets behind a massive enterprise Micro Frontend app I developed for the Dutch Railway Company. This project aimed to revolutionise the user experience, which previously [...]

The AI world is surely dominated by python, but things are moving in our loved PHP ecosystem too. LLPhant is building on the experience of LangChain and LLamaIndex in order to build a [...]

Value Objects can be one of the most powerful tools in your modelling toolbox. They make code expressive, maintainable, deterministic and cohesive. Yet they are sometimes misunderstood and it's often difficult for developers [...]

OpenAPI is a technical specification for defining your APIs with. It is often promoted as a good way to document your APIs so that others can use them: useful but unnecessary for many [...]

Four years after its first version, PHP 8 has already started the work of feature deprecations, targeting PHP 9. This session offers a complete overview of these changes: from the planned disappearance of [...]

What if you cannot trust your tests? With more and more developers working on our monolith, we have a strong CI to deliver code into production: our goal is to deliver meaningful features [...]

Even with AI doing the (some) coding for us, specifying *exactly* what is needed and how to implement it is *hard*. How do you know you’ve got it down? When do you know [...]

Software development serves as a tool for automating solutions to problems. However, it's common for us to select frameworks, make architectural decisions, and begin writing code long before fully grasping the problem at [...]

In this workshop, you’ll learn how to implement user authentication using Passkeys in your web and mobile applications, enhancing both security and user experience. Through hands-on coding, you’ll build a project that leverages [...]

Even with AI doing the (some) coding for us, specifying *exactly* what is needed and how to implement it is *hard*. How do you know you’ve got it down? When do you know [...]

Even with AI doing the (some) coding for us, specifying *exactly* what is needed and how to implement it is *hard*. How do you know you’ve got it down? When do you know [...]

In this workshop, you’ll learn how to implement user authentication using Passkeys in your web and mobile applications, enhancing both security and user experience. Through hands-on coding, you’ll build a project that leverages [...]

Software development serves as a tool for automating solutions to problems. However, it's common for us to select frameworks, make architectural decisions, and begin writing code long before fully grasping the problem at [...]

NOTE: This is the same talk as in room 2, live streamed from that room, in case too many people choose this session. In this talk Bert showcases his parliamentary monitoring system https://opentk.nl [...]

In this talk Bert showcases his parliamentary monitoring system https://opentk.nl to discuss the tradeoffs between running on a microstack, of a few cheap software components, and taking seven-league boots using cloud services to [...]

Even with AI doing the (some) coding for us, specifying *exactly* what is needed and how to implement it is *hard*. How do you know you’ve got it down? When do you know [...]

In software projects, it's important to write down why we make certain big decisions about how the software is built. These written records are called Architecture Decision Records (ADRs). They help us remember [...]

The Uncon Track is designed for spontaneous collaboration, lively discussions, and meaningful connections. Unlike the other sessions, this track empowers attendees to shape the conversation themselves and explore topics of their choice. Feel [...]

Observability is the ability to measure a system's current state. Backend engineers are becoming more familiar with the three pillars of observability and technologies such as OpenTelemetry that can be used to instrument [...]

Dive into keyboard accessibility and focus management - skills for creating inclusive web experiences. Learn how to ensure your interactive elements are accessible to everyone, whether they use a mouse or not. We'll [...]

Ever heard of AI by design? This session will explore the critical decision-making process behind when AI is the perfect tool to enhance your operations and when it might not be the best [...]

After the journey through Fronteroth, lies the portal to the Backend. There's a whole new set of concepts to master: server-side logic, databases, APIs, and more. And just like the frontend, the backend [...]

Is TypeScript the hero JavaScript has been waiting for? While some love its type-safe assurances, others shy away from its complexity. But what if you could navigate the spectrum of TypeScript's capabilities with [...]

What can tech teams learn from a theme park? More than you might think. Disney is known for crafting magical experiences: not just in their parks, but in the way they approach design, [...]

The Uncon Track is designed for spontaneous collaboration, lively discussions, and meaningful connections. Unlike the other sessions, this track empowers attendees to shape the conversation themselves and explore topics of their choice. Feel [...]

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 [...]

What happens if all website information is contained in public LLM solutions? You will get the best UX design ever made in seconds! Public LLM's like DALL·E and Midjourney contain this information needed [...]

What makes some websites instantly feel 'right' while others frustrate us? What makes interfaces feel truly intuitive? In this session, we'll explore three fundamental UX design principles (Information Architecture, Consistency, and Clarity) and [...]

The Uncon Track is designed for spontaneous collaboration, lively discussions, and meaningful connections. Unlike the other sessions, this track empowers attendees to shape the conversation themselves and explore topics of their choice. Feel [...]

The Uncon Track is designed for spontaneous collaboration, lively discussions, and meaningful connections. Unlike the other sessions, this track empowers attendees to shape the conversation themselves and explore topics of their choice. Feel [...]

Serverless development might sound like magic, or maybe even like something straight out of The Matrix, but trust me, it's not the kind of tech that will leave you tangled in complexity. In [...]

Did you know you can use the Chrome DevTools to test whether your website is build in an accessible way? If not, let's explore together. In this session, we will explore how we [...]

Gen AI is known to sometimes produce inaccurate and unpredictable responses, which can be catastrophic for any developer hoping to build a consistent experience for their end users. In this talk, we'll explore [...]

I’m sharing best practices on building a truly cross-platform / universal TypeScript library in 2025. TypeScript compiles to JavaScript which runs everywhere, so that should be easy, right? For a simple library, sure, [...]

Discover what Memory Leaks are in practice. We'll use MemLab and Chrome DevTools to debug leakage in our sample application, and it'll no longer be a black box for Developers attending the session! [...]

ING is a leading European bank, with over 60,000 employees serving more than 38 million customers, corporate clients, and financial institutions across more than 40 countries. In this session, I will present how [...]

Is CSS a programming language? And if so, how do you program in it? In this session you will learn how to create some solid engineered systems in CSS. We will learn how [...]

Dive into the cutting-edge world of VR-first web development! As VR headsets revolutionize web browsing, we'll challenge the assumption that VR websites must be 3D and spatial. Instead, we'll explore how to adapt [...]

The Uncon Track is designed for spontaneous collaboration, lively discussions, and meaningful connections. Unlike the other sessions, this track empowers attendees to shape the conversation themselves and explore topics of their choice. Feel [...]