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Your Coding Agent Runs as You

A coding agent on your laptop runs as your user, with every key you have. This is the written version of my aiGrunn talk on why that needs a sandbox, what a sandbox has to limit, and five places to … Roald Nefs

A CAN Bus Console in a Browser Tab

WebUSB CAN is a CAN bus console that runs in a browser tab. It talks to a candleLight or CANable adapter over WebUSB, without drivers or installs, and ships … Roald Nefs

Building a Car Hacking Test Bench

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 … Roald Nefs

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

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 … Roald Nefs

Committing Changes to a Pull Request Branch Created from a Fork

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 … Roald Nefs

Spoofing Microchips used for Animal Identification

A microchip implanted under the skin of an animal can be used for identification purposes. The microchips are using Radio Frequency Identification (RFID) … Roald Nefs

How to Automatically Generate Clients for your REST API

While helping a colleague with adding some code to the bunq Python SDK to allow him to retrieve some additional information from the API (bunq/sdk_python#148), … Roald Nefs

Git Branching

Introduction Like other version control systems Git also support a way to diverge from the main line of development and continue to do work without messing with … Roald Nefs

Getting Started with Git

Introduction Git is a free and opensource distributed version control system designed to handle everything from small to very large projects with speed and … Roald Nefs

How To Create a Visual Studio Code Extension Pack

Within Visual Studio Code you will often find yourself installing multiple extensions for a certain language or framework. You might want to share those … Roald Nefs

Ding Dong Ditch using SDR and Arduino

In this post we will be building a device to play Ding Dong Ditch digitally. The device will ring the doorbell every several seconds without pressing the … Roald Nefs

Hardware Reversing the Sitecom Wireless Router 150N X1

Last week I’ve bought a Rigol DS1102E digital oscilloscope and was very eager to test it out. When going to my bin of old hardware I’ve found a … Roald Nefs

Update YARD Stick One Firmware

Today I received my YARD Stick One (Yet Another Radio Dongle) created by Great Scott Gadgets. The dongle can transmit and receive digital wireless signals at … Roald Nefs

Software Defined Radio on Linux

In the quick start guide for Software Defined Radio (SDR) on Linux we will listen to some very common frequencies using a RTL-SDR. SDR is a radio communication … Roald Nefs