Recent news

    CocoaHeadsNL Meetup, 23 November 2022

    Posted on November 24, 2022

    Live stream of our monthly CocoaHeadsNL meetup at Pinch in Amsterdam. Schedule: 19:00 - Presentation by Maarten van der Velden: Live Activities and ActivityKit This month we only have one talk. Do you want to give a talk at a future CocoaHeadsNL meetup? Did you implement a nice new feature? Or did you learn a new framework or a set of APIs? Give a talk about it! Contact any of the CocoaHeadsNL Team members and they are there for you to help you.

    November @ Pinch

    Posted on November 23, 2022

    We're happy to announce that we will be visiting [Pinch]( on November 23th.

    Do iOS 2022

    Posted on November 08, 2022

    Do iOS is back in 2022. After 3 successful editions in 2015, 2016, and 2018 we again invite you to join us in Amsterdam to celebrate iOS development in all its aspects. Organized by the CocoaHeadsNL foundation. All proceeds will flow back into the iOS developer community in and around Amsterdam. We aim to create a reasonably priced event with maximum interaction.

    Live Actvities, by Maarten van der Velden (English)

    Posted on October 01, 2022

    A new feature in iOS 16 is Live Activities. Maarten explores what it is and what it can do for their Catawiki app. He shares his learnings and shows how they implemented it.

    My path to freelance, by Eugen Martynov (English)

    Posted on October 01, 2022

    A few years ago Eugen decided to go freelance. In this talk he shares his learnings and talks about a lot of things you should think about when you go freelance.

    Do iOS 2022 launch, tickets available now!

    Posted on September 28, 2022 on Do iOS 2022, our sponsors and what you can do to join our conference. ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ If you are into CocoaHeadsNL, you probably already are aware of the Do iOS conference. But just to make sure you are aware of what we've been working very hard on, here is a one time only copy of a mailing we just sent out to the Do iOS mailing list. Sign up to the conference mailing list at All the best, Bart, Jeroen. Marco and Jolanda... Read more

    September @ Catawiki

    Posted on September 21, 2022

    Come join the September meetup of CocoaHeadsNL.

    Senior iOS SDK Developer

    Posted on September 20, 2022


    Cryptography, by Bram Kolkman (English)

    Posted on July 08, 2022

    In this talk Bram will introduce you some fundamental terms, concepts and techniques that every developer should know about cryptography and hashing. He will e.g. explain what hashing is and what the difference is between symmetric and asymmetric encryption

    PassKeys and WebAuthN, by Jeroen Leenarts (English)

    Posted on July 08, 2022

    Jeroen introduces and demonstrates how Apple has implemented the WebAuthN with PassKeys. This authentication mechanism of the FIDO2 project is supported in the new iOS 16 and macOS 13 that Apple announced at WWDC 22.

    Building custom SwiftUI property wrappers, by Donny Wals (English)

    Posted on July 06, 2022

    Donny demonstrates how to implement a custom made property wrapper for SwiftUI views to fetch data from a JSON feed. He also shows how to test it and shares his learnings and some valuable tips.

    CocoaHeadsNL @ AppDevCon

    Posted on June 24, 2022

    Join CocoaHeadsNL at the AppDevCon. Just like previous editions, we will be on-site and have our community corner.

    June @ Stream

    Posted on June 15, 2022

    Come join the 4th meetup of CocoaHeadsNL in 2022.

    WWDC @ Q42

    Posted on June 06, 2022

    It is WWDC time again.
    Instead of watching it online, you can join a viewing party at Q42 in The Hague! Much more fun that way!

    May @ Maxdoro

    Posted on May 18, 2022

    Come join our **3rd in person meetup** this year at **Maxdoro** (Amersfoort).

    Async Await, by Jeroen Bakker (English)

    Posted on March 24, 2022

    Jeroen shows how to implement the recently introduced Swift Async Await feature. He demonstrates how to rewrite a simple Corona app that uses completion blocks to async await.

    March @ Triple

    Posted on March 16, 2022

    Sometimes things happen for a reason.

    Introducing Feather CMS, by Tibor Bödecs (English)

    Posted on February 21, 2022

    Tibor Bödecs is the developer of Feather CMS and he introduces you to this Swift-based content management system powered by Vapor 4. Feather can be used in many different ways, for example to create blogs, websites, RESTful APIs, back-ends for mobile apps and much more.

    How AppClips can evolve your architecture to the next level, by Jeroen Bakker (English)

    Posted on February 20, 2022

    AppClips are powerful to introduce new users to a flow in your app, but where do you start and what are the limitations? In this talk Jeroen will teach you the possibilities, how to reuse code, make use of multiple flows in 1 AppClip, tips to stay under the 10MB limit and perhaps rethink how you should architect your main app.

    February @ Online: Introducing Feather CMS

    Posted on February 16, 2022

    Feather is a modern Swift-based content management system powered by Vapor 4. Feather can be used in many different ways, you create blogs, websites, RESTful APIs, back-ends for mobile apps and the list goes on. The modular architecture makes Feather extremely powerful, it is possible to add new features or extend existing ones through event-driven hook functions.

    iOS SDK Developer

    Posted on January 19, 2022


    January @ Online

    Posted on January 19, 2022

    This month we have a talk from Jeroen Bakker about AppClips and how then can evolve your apps' architecture to the next level.

    Micro/feature frameworks, by Jeroen Leenarts (English)

    Posted on December 24, 2021

    Jeroen gives you a introduction on how to get started with a Micro Framework or even a Micro Feature architecture. You will get some hands-on guidance on how to get started with Tuist and apply it on your (next) project.

    CocoaHeadsNL Online Meetup, 15 December 2021

    Posted on December 16, 2021

    Live stream of our monthly CocoaHeadsNL meetup. Due to the corona virus we are still not able to host a regular meetup. Instead we are hosting an online meetup via our regular YouTube live stream. This month we have talk from Jeroen Leenarts about Micro/feature frameworks. Please note: we start at 20:00 Hrs CET (19:00 UTC).

    December @ Online

    Posted on December 15, 2021

    PLEASE NOTE: New start time of 20:00 Hrs CET (as usual)