Context Back in 2020, I had some problems with the USB interface of my Realforce 87UB keyboard on Ubuntu. Despite my initial struggles, I conducted some research and documented my findings in a sm...

Introduction Another year has gone by since I wrote my first write-up for dJulkalendern. The challenges this year are hosted on https://djulkalendern.se/. The challenges are presented in a calenda...

Introduction At Techorama 2023 in Utrecht, the Netherlands, Quintor had an exhibition stand. Representatives of Quintor were giving out leaflets with a challenge description on it, where you’re abl...

Introduction A Swedish friend and student at KTH university introduced me to a CTF-like puzzle in an advent calendar format called dJulkalendern. A window (i.e. puzzle) will be released every week...

Motivation While working with EF migrations, I found it quite irritating to view the EDMX that Entity framework produces in the Migration History table. It is not really an issue when you’re alrea...

Note: Specifically for the Realforce 87U, this fix is now obsolete/irrelevant. The USB 3.0 Link Power Management is now disabled by default in the Linux kernel for the Realforce 87U. See my more...