Featured on Roald Nefs

Building a Car Hacking Test Bench

info@roaldnefs.com (Roald Nefs) — Sun, 04 Jan 2026 00:00:00 +0200

Modern cars are computers on wheel, dozens of ECUs, multiple busses, wireless interfaces, and a threat model that keeps expanding. For the past few years I dipped my toes in the automotive security scene. It’s now time to take a deep dive. So I bought a car.

How to extract an AppImage and add it to the Ubuntu Sidebar

info@roaldnefs.com (Roald Nefs) — Wed, 25 Dec 2024 00:00:00 +0200

In this post, we’ll guide you through extracting an AppImage and integrating it into the Ubuntu sidebar for easy access. As an example, we’ll use SavvyCAN, a CANBus reverse engineering tool.

Committing Changes to a Pull Request Branch Created from a Fork

info@roaldnefs.com (Roald Nefs) — Wed, 03 Jan 2024 20:00:00 +0200

Sometimes a pull request on GitHub.com needs some work before it can be merged into the project but you don’t want to force the required work on the pull requests original author. You’re allowed to make changes to the pull request if they are opened to a repository you have push access to, the fork is user-owned, the user has granted the required permissions and there aren’t any branch restrictions that will prevent committing.