Once again this year, I had the chance to take part in the project week at Alstergymnasium in Henstedt-Ulzburg (Schleswig-Holstein). During the week of June 29th, turnout was even higher than last year. Under the topic Code Your World!, 27 students wanted to learn how to create their own Experience (world) using Roblox Studio and the programming language Lua(u).

In the week of July 21, 2025, I had the pleasure of teaching 17 students of the Alstergymnasium in Henstedt-Ulzburg (Schleswig-Holstein) the basics of programming in Python for 4 days.

This PowerShell script enables the creation of a scheduled snapshot for one or multiple VMware vCenter virtual machines (VMs). It automates the snapshot creation based on a defined schedule, which is especially useful for backup and maintenance purposes in virtualized environments.

With relatively little effort, K3s lets you set up a highly available Kubernetes cluster on Proxmox Virtual Environment (or similar). K3s is a lightweight Kubernetes distribution from Rancher that is especially well suited for edge computing, IoT, and homelab environments. By using three master nodes in an HA setup with embedded etcd, an HAProxy load balancer, and several worker nodes, you get a production-like cluster architecture that provides fault tolerance.

This script creates a list (CSV file) of all virtual hard disks (VMDKs). This file can then be further processed or analyzed with tools like Excel.