Posts

Upgrading a live PostgreSQL database in a Kubernetes environment can be a daunting task. Earlier this year, I faced this exact challenge: migrating an important PostgreSQL 15 database to version 16. As this was the first time I tackled an upgrade of this nature, I realized I would gain more from the experience by documenting it. Additionally, I hope to share insights that might help others navigate similar upgrades. Context: The database was a live instance running in our Kubernetes cloud, serving as a template for other environments. It was operating on PostgreSQL 15, and we needed to upgrade it to version 16. To accomplish this, I had to deepen my knowledge of both PostgreSQL and Kubernetes. Fortunately, I collaborated with a knowledgeable colleague who was already well-versed in these areas. His support was invaluable—thanks Robin! ...

I recently got access to Claude Code. So, I installed it and decided to test it on one of my hobby projects, VimTeX. Specifically, I wanted to do two things: Have it analyze the project and let me know what it thinks. Have it help me resolve an issue. This is a short writeup of my experience. First, for reference, VimTeX is a Vim and Neovim plugin. It consists mostly of Vimscript, but also a few other things, as is shown in the output of tokei: ...

In this series, I will briefly talk about tools that I love and that I use often. I will keep things brief, as there is already a lot of good content that goes into more depth. How do you follow and consume web content? Are you manually checking news sites, blogs, and similar sources for updates regularly? If so, you might be interested in learning about news aggregators and web feeds like RSS and Atom! ...

Disclaimer: This post is also published at the Sikt blog. I began my research career at SINTEF Energy Research after finishing my Master’s in numerical mathematics in 2008. My main area of research throughout my career was computational fluid dynamics (CFD)1. I finished my PhD in 2013, and I stayed at SINTEF working as a research scientist until March 2022. In April 2022, I started working as a senior backend developer at Sikt — this is where I’m currently still working. In this post, I want to express some thoughts about what I’ve learned after my transition from being a researcher to being a developer. ...

In this series, I will briefly talk about tools that I love and that I use often. I will keep things brief, as there is already a lot of good content that goes into more depth. People who know me know that I am very fond of using text both as a help for thinking clearly and for communication. I take a lot of notes. Most of these are in my own personal wiki. In this blog post, I’ll explain how I write and maintain my personal wiki. I’m not going in depth, instead I’ll highlight some of the essential parts of my workflow. I might write some in-depth posts about certain parts at a later time. ...

The last couple of years I’ve been working in a team at Sikt on the admission services for Norwegian universities and colleges1 2. As part of this work, we’ve been performing load tests of the applicant portal. The first times my team and I did this, we followed a well-defined manual procedure that were executed two times each year. We figured it would be relatively easy to automate this and have the load tests run daily in our pipelines. ...

In this series, I will briefly talk about tools that I love and that I use often. I will keep things brief, as there is already a lot of good content that goes into more depth. Anki is a flash card tool to help with remembering things. In their own words: Anki is a program which makes remembering things easy. Because it’s a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn. ...

In this series, I will briefly talk about tools that I love and that I use often. I will keep things brief, as there is already a lot of good content that goes into more depth. mise-en-place, or mise for short, is a tool for setting up well-defined development environments. To use it, I simply specify which tools or dependencies I want in a file named mise.toml inside a project. Then, when I work on that project, mise automatically ensures that I have the specified tools at the specified versions available. ...