Posts

A little later then usuals. Yesterday I was at the Dutch ComicCon, and I forgot to post. Here is my reading of last week.

The Real Impact of AI

I think we’re all wondering about the deeper effects of weaving AI into our daily lives. This week, I found a few articles that really made me stop and think. The first was a standout study from MIT that suggests using tools like ChatGPT for writing could lead to a kind of “cognitive debt.” They literally measured brain activity and found that relying on AI can cause the parts of our brain responsible for deep thinking to become under-engaged. It’s a fascinating and slightly worrying idea.

Software Engineering

In my feed the opening talk by DHH at Rails World 2024 popped up, most notably due his stance on the reduction of complexity in running an online business. He promotes running your own (virtual) hardware, reducing build pipelines and not using Platform as a Service providers (#nopaas). Watch it below.

Tech in general

I learned that most of the layoffs in the US are not so much about AI taking jobs. Sure, there are bound to be a bunch of people that are no longer employed because their jobs was easily replaced by a system, but there is more then meets the eye. In “The hidden time bomb in the tax code that’s fueling mass tech layoffs” explores the tax rule that was changed under Trump-I, section 174, which basically no longer allows companies to write-off R&D effort in the current fiscal year.

How Vibe Coding Fails

Now, take a look at the following video. If you don’t know any Dutch, Tom is using bolt.new to create an AI chatbot that simulates a difficult HR conversation. How this relates to education isn’t relevant here; the point is that he wants to demonstrate the use of a model with a frontend.

Will software development change? Yes, of course. Will we stop making software? No, we’ll still be creating software, just not in the same way as before.

For the last few months, a lingering question in our industry has been: is there still room for developers in this AI-driven world? My answer is yes, but we won’t be developing in the same way we have for the past 30 years.

My career dates back to my first professional coding job in 1996. Back then, we created software that had to be physically shipped to customers on some form of media. My most ambitious project was the work I did when the Dutch ISP Freeler was created . We wrote software and then put it on a CD-ROM to ship to customers. Later, the delivery medium became the web, which transformed all our distribution challenges. Programming languages evolved too, shifting from those focused on single platforms and distribution methods to more web-friendly languages.

I am leaving NOVI. Yes, I know, it is sad news. For almost 6 years I have been building and maintaining an organisation that provides the best cybersecurity and software development (Bachelor) education in The Netherlands. In that time I have done amazing things:

• Created a short course format for people that want to switch careers. With some back of the napkin calculations I have seen over 2500 students pass through one of the programs.
• I lead a team of quality assurance, educational development, EduTech developers and teachers to build an awesome EduTech tool and provide top-notch education.
• Started and hosted the Hack The Box NL meetups for 4 years.
• I became part of the management team and helped the organisation through an M&A proces

It has been a wild ride, but like all things that begin, it must end.

When I tell people that I like to code in Clojure the common response is “wut?”. Clojure is not known as a programming language in which you create big systems. As all Clojure people know, this is not true. There are many systems written in Clojure. Let me show you some that are very actively maintained.

First there is Lipas, a Finnish platform that shows you information about sports clubs. The structure and techniques used in this code base I use as a reference implementation for my own ClojureScript + Clojure systems. A screenshot of the application is shown here:

Observability in cloud-native applications is crucial for managing complex systems and ensuring reliability (Chakraborty & Kundan, 2021; Kosińska et al., 2023). It enables continuous generation of actionable insights based on system signals, helping teams deliver excellent customer experiences despite underlying complexities (Hausenblas, 2023; Chakraborty & Kundan, 2021). In essence, adding proper observability to your system allows you to find and diagnose issues without having to dig through tons of unstructured log files.

While following the book Zero2Prod you will learn how to deploy a Rust application to digital ocean through a Continuous Deployment pipeline. This is hardly anything new for me, I even teach a course in DevOps, but to not stray from the path of the book I followed its instructions.

In July 2023, I installed NixOS as my daily operating system. NixOS is a Linux distribution that emphasizes a declarative approach to system management. This means you define your desired operating system configuration in a file (e.g., KDE with Emacs 30 and Firefox), and the Nix package manager uses that file to create your OS. Every change generates a new version, allowing you to revert to a previous version if anything goes wrong.

In my previous post I highlighted that I set myself the goal of creating a self hosted comic book collection tool. Before that, in a post about tooling , I reiterated my ❤️ for Clojure as a language. So, this is the start of a series of articles detailing how the development is going, and also as an introduction to the various parts of the tech stack.

Clojure is special to me in that there are hardly any big frameworks in the ecosystem. Clojure is more like Lego, there are countless building blocks of various shapes and sizes. It is up to you as the developer to stick the blocks together to get something usefull. You might guess that I also ❤️ Lego.

So, a new year, a new theme! I switched my blog to use the Today I Learned Theme. This theme has a great feature where it also maintains a collection of notes and shows a graph with related notes. This is very similar to how I use org-roam.

I will not be transferring all my notes over, but I thought it would be a very nice feature to share some of my notes with you. This year I am focussing on Clojure and Rust , and as a result I will be posting my notes on the new things I learn.

I ❤️ to build software. I sadly do not have a lot of time next to my daily work to spend on my side projects, so I have to be disciplined in where I invest time. I wish I could spend endless amounts of time on exploring new technologies, but sadly I simply do not have that time. In writing this is sometimes referred to as “to kill your darlings”.

It is December again and that means it is time for the Advent of Code. Due to my workload and family obligations I will probably not be able to get very far this year, but still I wanted to write a post about it.

This year I am using Java, together with my students. My goal is to write as modern as possible Java, which means using streams and new language constructs where possible.

My old laptop, now almost 6 years old, has seen it all. From conferences, to lectures, traveling to distant places and to the library. I did a lot of work on it during the writing of my thesis, and it is a victim to countless hours of compiler time.

Sadly the battery started to die. It got to the point that you can only use it shortly for heavier loads. Luckily, unlike certain hardware (looking at you Apple), it is easy to fix. All it needs is a new battery. So I found that ifixit had the right parts and a very useful kit with all the right tools to do the job.

Today the academic world is remembering Bastiaan Heeren, who passed away last week.

I spent the better time of a year working on my thesis, and before that I enjoyed lectures given by Bastiaan. He was a person with a great love for teaching, especially when you can get into the nitty gritty details of software quality and the benefits of functional programming.

I look back fondly on my time with Bastiaan. He was an open, warm, critical and encouraging human being. He had a great love for his family and work.

I recently came across Traefik. It is a reverse proxy built specifically for services in the cloud. I was searching for a convenient (up-to-date) way to expose my project using a reverse proxy within docker-compose. I used to use nginx for this, but it then requires a generator and an lets encrypt listener (so 3 containers). Traefik only requires a single container and allows you to label your docker containers to apply rules to them.

This is my first article in a series called Rock Solid Software. In it I explore different dimensions of software that does not simply break. You can write good software in any programming language, although some are more suited to a disciplined practice then others, Clojure is definitely in the relaxed space of discipline here.

Today I am exploring the use of Selmer templates in Clojure. If you have explored Biff at all you will know that all the UI logic works by sending Hiccup through a handler, which will turn into HTML through rum (specifically the wrap-render-rum middleware). If you provide a vector as a result for an endpoint, it will be converted to HTML.

Je hebt tijd gereserveerd om te gaan studeren en je volgt een ritueel om goed in jouw “Deep Work” modus te komen, dat studeren gaat echt goed lukken! Tijdens de colleges en in de lesmaterialen vind je allerlei links naar papers, websites, YouTube videos en haal je veel informatie uit boeken. Al deze bronnen zijn zeer waardevol en bij de eindopdracht zul je veel van deze bronnen weer moeten gebruiken om argumenten te onderbouwen of juist iets te ontkrachten. Hoe ga je dan om met die bronnen zonder dat je gek wordt van allerlei documentjes?

In mijn vorige artikel heb ik uitgelegd hoe je tijd kunt vinden om te studeren, de vraag is echter, is alle tijd hetzelfde? Het simpele antwoord is “nee”. Maar waarom niet, zul je vragen, en daarmee komen we op het onderwerp van dit artikel.

Cal Newport heeft een fantastisch boek geschreven, “Deep Work: Rules for Focused Success in a Distracted World”. In dit boek onderzoekt hij hoe je gefocust werkt en wat er voor nodig is om gefocust te blijven [1]. In het boek identificeert hij 2 soorten werk; “Deep Work” en “Shallow Work”. Deze concepten hebben voor mij de aanpak van mijn dagelijkse werk zelfs veranderd, maar dat is een verhaal voor een andere keer.