Q42 Engineering

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Illustration of a woman with a mobile phone in her hand, that sends a flying letter to a mailbox.

Faster feature implementation with Server Driven UI

Why this new architecture is so successful in further developing the iOS app for Dutch postal company PostNL

Illustration of two people singing at a karaoke machine.

Help, Our Karaoke Machine Is on Fire! 🔥

Our karaoke machine just got ＣＯＮＮＥＣＴＥＤ

A woman and a man behind a laptop with a speech bubble saying WTFFF!

An online interactive about sexual abuse

The challenges of creating a compelling and performant web experience with and for young victims

An illustration of a man in an auto pointing his mobile phone to a garage door.

Hacking the parking gate

How we developed an internal tool from idea to prototype within a day

Blind person with mobile phone that plays music notes that correspond a graph in front of him.

Using SwiftUI in a production app

The three main challenges we encountered while building an iOS app that makes math graphs audible to blind students

Creating a next-level web experience

Creating a next-level web experience

My journey of turning a visually stunning concept into an animated memorial monument in just two weeks

Illustration of a developer behind a laptop with threats connecting his device to an image of the earth.

WebAssembly: Beyond the Browser

Running WebAssembly as a Hyperscaled Edge Service

Illustration of a mechanical arm delivering books to the cloud.

Boost your Infrastructure as Code with Bicep

Forget ARM; the new kid on the block is better, faster and more powerful

Illustration of a researcher (right) trying to put the words of a patient (left) into a statistical graph.

Supercharged app development using SwiftUI

How we used SwiftUI to build an app for behavioral research

Illustration of a self-portrait of Van Gogh with a little Van gogh figure beside it measuring the painting.

Making museum websites more engaging by use of data

How we created a smart feature for the Van Gogh Museum website to indicate the true size of a painting

Every Composable deserves a ViewModel

Every Composable deserves a ViewModel

Solving the Android challenge of scoping a ViewModel per Composable with remember

Big images, blazingly fast

Big images, blazingly fast

Optimizing full-screen images for Rijksmuseum’s story platform

Creating an App Clip for Hue lights

Creating an App Clip for Hue lights

Our learnings from building a small stand-alone iOS app for guests to control your smart lighting system

Beautiful accessibility with Floating Focus

Beautiful accessibility with Floating Focus

A package published by Dutch tech agency Q42 to empower the end user, while keeping the designers on your team happy

Protecting wildlife with machine learning

Artificial Intelligence

Protecting wildlife with machine learning

Deploying a smart camera trap in a remote location to help save elephants and rhinos

A deep dive into improving indoor localisation

Artificial Intelligence

A deep dive into improving indoor localisation

My research journey into the usage of fingerprinting in combination with K-Nearest Neighbor to improve the indoor localisation performance of the Rijksmuseum app

Going from JavaScript to WebAssembly in three steps

Going from JavaScript to WebAssembly in three steps

My journey of taking the Micrio client to the next level

Credit where credit's due

Credit where credit's due

The thing that’s missing from every website

The beautiful headache called event sourcing

The beautiful headache called event sourcing

A deep dive into the decision to use event sourcing for payment processing and why, in the end, it was a wonderful fit

A software engineer's approach to neural machine translation

Artificial Intelligence

A software engineer's approach to neural machine translation

What we learned while building an online translator for the small language of Tigrinya

Effortless security on the web

Effortless security on the web

How to implement multi-device passwordless authentication on the web with the Web Authentication API

The missing part of Android in-app updates

The missing part of Android in-app updates

Prioritising in-app updates while Play Store support is not yet available

Our team's blessing: a living style guide

Web development

Our team's blessing: a living style guide

A case study on how to maintain large websites by using a living style guide

Instant-appifying a large mature app

Instant-appifying a large mature app

The challenges of adding an instant app to a five-year-old codebase

Making a Lighthouse Plugin work with Lighthouse CI

Web development

Making a Lighthouse Plugin work with Lighthouse CI

Learn how to do your custom page audits in GitHub Actions with Lighthouse CI