How much code are you testing ? (5)
Tracing dlopen()'d libraries on-the-fly with event-driven eBPF JIT uprobes
ilManzo's blog
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syscalln't 🚫
Teaching write() to say no: an introduction to syscalls and fault injection, using strace to make a syscall fail on demand
Mid 2026 recap: coding, conferences, and workshops
Mid-2026 recap: coding, conferences, and security workshops
How much code are you testing ? (4)
Native eBPF binary coverage with funkoverage. No SDK, no recompilation, any architecture
Flatpak: unboxing the sandbox
How to have new apps without letting the dependency mess leak onto your carpet
Landlock idiomatic sandboxing in Nim
Harden linux programs using Linux Landlock
Rootless Podman as a Salt Lab Environment
🧂 Salt without the sudo Follow-up from the previous post , today we are going to put our systemd-managed containers to work and use them for some useful tasks. The idea is to set up an environment to learn how the configuration management Salt works, and play/hack around with it, without even needing root or sudo rights. After all, in the infra-world, the Salt must flow ! So we will setup two…
Zig Day 2026 recap
Small debriefing after coding event
A Friendly Guide to Podman Quadlets
🦎 Hi geekos! If you’ve been running containers on your Leap or Tumbleweed machine, you probably started with podman run commands. Maybe you moved to Docker Compose files to manage stacks. Those are great tools, but they have a limitation, as they don’t integrate natively with systemd , your operating system’s init system. When your server reboots, do your containers start back up…
A Headless Linux Router Build
👻 Void in the Basement I have a basement, and I have a problem: no WiFi signal in said basement. I have also a piece of e-waste that refuses to die: a Samsung N130 netbook from 2009 . It has a single-core Atom processor and 1GB of RAM. By modern standards, it can barely open a web browser. But for a Linux terminal, It’s a supercomputer . Instead of buying a generic ~10€ WiFi repeater, I…
Automating OpenQA Job Cloning with Python and YAML
🎉 Happy New Year! As anyone working with OpenQA knows, it is a powerful tool for automated testing. But sometimes, the workflow around re-triggering those tests for investigation purposes can feel a bit… Manual . Recently, I found myself in a repetitive cycle while debugging complex test scenarios. My workflow looked something like this: Take a known “good” job URL. Open a…
Advent of code 2025: the diaries
Having fun with Christmas code challenges
October 2025 conferences recap
Quick debriefing after autumn events
Automated files cleanup on Linux
🚮 Or: how I taught my Linux box to take out its own trash
From QEMU Headache to Headless
Taming a Command-Line Monster
my resume
curriculum vitae
June 2025 conferences recap
Quick debriefing after summer events
How much code are you testing ? (3)
Using Intel PIN to measure test coverage on binaries
Refactoring the D Koans with metaprogramming
How metaprogramming helped create a cleaner testing experience for D Koans
How much code are you testing ? (2)
Measuring test coverage on binaries
How much code are you testing ? (1)
Measuring coverage of integration tests
Systemd Socket Activation Explained
Stop Wasting Resources: how to start your services on demand
Writing shell filters for fun and profit
An utility to simplify monitoring openqa job clones
Debriefing Advent of Code 2024
A personal recap of Advent of Code 2024
Wrapping up GoLab 2024
Personal recap of GoLab 2024 conference
Linux Test Project part 2
Follow-up on LTP: the test options
Wrapping up ContainerDay 2024
Highlights from Italian ContainerDay 2024 conference
The Linux kernel ftrace
Overview of the Linux kernel tracing feature
Testing a cheap MicroSD card quality
Some basic checks to ensure you bought a good storage for your files
Playing with Linux kernel capabilities
What are and how to use the Linux kernel capabilities
Measure your program's power consumption
Understand how much power you are using
Headless Testing of PySide/PyQt GUI Applications with pytest-qt
An approach to headless testing of GUI programs
A different approach to terminal user interfaces
First steps with Bubble Tea, a Go TUI framework
SEGFAULT: Debugging a crashing application
What's a core dump and how to use it for debugging ?
Osday 2024 recap
Quick debriefing after a cool event in Florence
Playing with Rust on ARM architecture
Easy cross compilation for everyone
First steps with Linux Test Project
How the Linux Kernel is tested, one syscall at a time
Introduction to packaging Rust application
How to package a Rust application on openSUSE
Fault Injection in Network Namespace and Veth Environments
How to improve your software by simulating a faulty network device
Expect the unexpected
How to improve your software by simulating a faulty block device
A trip on the rusty D-Bus
How to expose a D-Bus service and create a simple client writing some Rust code
Quiet fans on Thinkpad P15
How to lower the default fan noise on Thinkpad P15 Gen2
Using containers for unit testing of bash functions
How to create an isolate environment to safely test your bash scripts
Embed git commit hash into an executable
How to insert the current HEAD commit hash in a binary
Old-School demo effects with Crystal
revisiting old code with a new programming language
Benchmarking a Rust function
A first look at Rust performance benchmarking
Debugging a problematic build
A technique to inspect Open Build Service build process
a SUSE hackweek22 report
writeup about learnings and achievements in last SUSE hackweek
compare package version across distros
a tool to check if an openSUSE package version is up to date against other distros
get update info about packages
a simple wrapper to get last update date on a package