Software, Linux & Infrastructure
This blog is my workspace for building software, working with Linux systems, and developing technical infrastructure - with a focus on clear and structured solutions.Latest articles
The Selection Sort Algorithm 🇦🇹
How selection sort repeatedly finds the smallest remaining value and swaps it into place, visualized as an animated bar chart with a C++ implementation.
The Quicksort Algorithm 🇦🇹
How quicksort partitions a list around a pivot and recurses on both halves, visualized as an animated bar chart with a C++ implementation.
The Merge Sort Algorithm 🇦🇹
How merge sort repeatedly merges sorted runs into larger sorted runs until one remains, visualized as an animated bar chart with a C++ implementation.
The Insertion Sort Algorithm 🇦🇹
How insertion sort grows a sorted prefix one element at a time by shifting larger values out of the way, visualized as an animated bar chart with a C++ implementation.
The Heapsort Algorithm 🇦🇹
How heapsort turns a list into a binary heap and repeatedly extracts the maximum, visualized as an animated bar chart with a C++ implementation.
The Bubble Sort Algorithm 🇦🇹
How bubble sort sorts a list by repeatedly swapping adjacent out-of-order elements, visualized as an animated bar chart with a C++ implementation.
Hello, World! in C 🇦🇹
The classic first program every C programmer writes: a short history of the Hello World tradition and how to compile and run it.
The Bresenham Line Algorithm 🇦🇹
How Bresenham's algorithm draws straight lines on a pixel grid using only integer arithmetic, with a C++ implementation.
The Midpoint Circle Algorithm 🇦🇹
How the midpoint circle algorithm draws a circle on a pixel grid using only integer arithmetic and eightfold symmetry, with a C++ implementation.
plot — A Minimal C++ Plotting Library
A lightweight C++ SDL2-based plotting library with a minimal callback API for 2D graphics.
Apache Benchmarks with ab and curl
How to measure web server performance with ab (ApacheBench) and curl — useful after configuration changes or software updates.
Syncthing - Cloud-synchronisation without cloud 🇦🇹
Syncthing syncs files between devices directly, without any cloud service or third-party server. A practical setup guide for Linux.
Fast transfers with dd and loop-devices
Optimized dd parameters for fast file transfers and disk image copies when working with loop devices.
Emacs: Failed to verify signature archive-contents.sig
How to fix the 'Failed to verify signature archive-contents.sig' error in Emacs package management.
Setting static route in Debian-Linux
How to set a static network route in Debian/Linux and make it persistent across reboots.
How to change the environment of a running (parent) process under Linux?
How to modify environment variables of a running process under Linux using gdb — including parent processes.
apt-file – Find programs inside APT/Debian-repositories
How to use apt-file to search for commands and files in APT/Debian repositories before installing a package.
Passwordless SSH access to server
It is possible to simulate such password entries with the expect tool, but this is anything but secure.
Convert images to a single video using ffmpeg
How to combine a sequence of images into a single video file using ffmpeg.