Ich habe seit Ende 2023 einen Prusa MK4 3D-Drucker und habe den Aufbau der Kit-Version im Video festgehalten./Since […]
English
Together with MySQL and MariaDB founder Monty Widenius I migrated the production database of my company, cantamen, from […]
From MySQL to MariaDB in under 10 minutes – Live-on-stage migration of cantamen’s main database
As I often do, I now also published an English version of my German video about how to […]
How microcontrollers move things – motor control with an Arduino and a L293D IC
I really like my Google Pixel 4 XL smart phone. Unfortunately, the battery was aging and had less […]
How I swapped the battery of my Google Pixel 4 XL smart phone
Recently, I started a bit of microcontroller programming. I did some hobby electronics back in the 1980ies and […]
User interface library „UiUiUi” for Arduino/ESP32/ESP8266 etc.
I am developing in Java now for some 27 years, the most part of it for a living. There […]
Java: DSL-like Builders with interfaces instead of classes
„Framework” is a new laptop producer and brand. The new and small „Framework” company creates laptops with decent […]
The Framework Laptop – Unboxing And Installation
I bought a Røde Wireless GO II set of wireless microphones. In the video, I present its features […]
Røde Wireless GO II – New microphones for my videos
Vor einigen Tagen habe ich ein englischsprachiges Video über GPS-Tracking mit der Bangle.js-2-Smartwatch veröffentlicht. Nun habe ich davon […]
GPS mit der Bangle.js 2 – Geotracking mit der Open-Source-Smartwatch
I created a second video about the Bangle.js 2 Open Source smartwatch. This time, I concentrated on the […]
The Bangle.js 2 and GPS – Geotracking with the Open Source smartwatch
Some days ago I posted a German introductionary video about the Bangle.js 2 smart watch. I got some […]
The Bangle.js 2 smart watch – an overview
2 When it comes to a complete personal internet services setup, the single most important service is probably e‑mail. […]
Root server with IPv6-only KVM guests (III): Mail server with Postfix, Dovecot – and IPv4
18 In the first part of this article series, I’ve described how to set up a root server which […]
Root server with IPv6-only KVM guests (II): NAT64, DNS64, and KVM
I’ve already written that I’ve rented a root server for myself two years ago. While that machine works […]
Root server with IPv6-only KVM guests (I): The basic setup
In (K)Ubuntu 14.04 LTS Trusty Tahr, the Twinkle softphone application is somehow packaged wrongly so that due to […]