Software is not just software.
Excellent software should please users, developers and management and generate added value.
Steffen introduces you to Clean Code, design principles, software architecture, DevOps and other concepts…
How do I keep Linux servers and desktops up to date? This guide shows you how to do it the smart way! Let’s get started! Choice of distribution Linux Server – No half measures in the company Open source does not mean that running the software is free. If you are serious about using Linux, …
What are the Core Web Vitals … … and how do I optimise my website for optimum loading speed? Here is the guide for more speed Let’s get started! What are Core Web Vitals? Core Web Vitals are parameters that measure how quickly a website loads. In 2025, nobody wants to wait 30 seconds for …
What is HTTP3 and QUIC? This tutorial gives you an introduction and how to put it into practice. Let’s get started! What is HTTP? HTTP stands for “Hypertext Transfer Protocol” and is the protocol used to transfer some of the data on the Internet. It forms the basis for the exchange of information between your …
Kubernetes Tutorial – Create your first Docker container! Containers have been a popular buzzword for a few years now: What’s behind it? How do I create my first container? … and does Kubernetes work? That’s what I want to explain in this tutorial. Have fun! Create a local cluster We want to create a Node.js …
Many of us take it for granted that we have to buy new technology every few years. But why is that? This article explains why and what you can do about it. Let’s get started! Robust Machines for Eternity? Computers are machines for eternity! Lasered processors and encapsulated chips – but why do we throw …
Do you need an introduction to Chrome Developer Tools? Every web developer should know this powerful toolset inside out, because good development is only possible with an in-depth analysis of websites! Let’s start… What are the Browser Developer Tools? The Developer Tools are a collection of different website tools that help with the development of …
Which database types should you know? What are the differences? Which one should I choose? This article aims to answer these questions. Let’s get started! So many databases – why? There are hundreds of databases on the market. Their task is to store, change and read data. You need a different database depending on your …
What is the best OneNote alternative for handwritten notes and text? This article explains how you can switch from OneNote to a note-taking alternative with full control over your own data and more features. Let’s get started! Why should I switch from OneNote? First of all: I have used OneNote for 13 years, the last …
How can I install Docker Compose? This guide explains how Docker Compose works. Let’s get started! What is Docker? Docker software virtualisation uses container virtualisation. In these containers, programmes can run isolated from the host system. In contrast to virtual machines, Docker containers are more lightweight and do not consume as many resources. The resources …
Creating a virtual machine – easy? How does a virtual machine works? This tutorial will give you an introduction to the world of virtualisation. In 6 steps, I will show you how to create and use your own Linux virtual machine. What is a virtual machine? A virtual machine is a guest operating system in …
Want to write clean code? This 3-part tutorial gives you the code examples with tips and tricks for practice! Let’s get started! What is clean code? Clean code consists of logically structured and intuitively named variables and functions that anyone with a basic knowledge of the programming language can overview and understand in a reasonable …
You need a Jenkins tutorial? Here is the complete introduction to CI / CD. Let’s get started! What is Jenkins? Jenkins is a Continuous Integration / Continuous Delivery (CI /CD) software that automates many steps in the development and release of software. Continuous integration means that all progress made by developers during the day is …
How do I improve the loading time of my website? Why do some websites with images load faster than text websites? You will find the necessary knowledge in this tutorial! Let’s start. Why should the website be a few seconds faster? Why should I optimise the loading time at all? Isn’t a functioning website enough? …
Which database examples should one know? What are the differences? Which one should I choose? These are the questions this article aims to clarify. Let’s begin! So many databases – Why? There are hundreds of databases on the market. Their task is to store, change and read data. Depending on the application, budget and hardware, …
Do you want to learn how to program? Do you want to write your own apps and code nice games? Then this is the right tutorial for you. Get started with this tutorial without any previous knowledge. Let’s get started! Why should I learn to code? Programming is the key skill of the 21st century. …
