Migrating Spring Boot to Quarkus and GraalVM (2020)
Although implemented with Java the Quarkus framework allows to compile my Micro Service to a linux binary, which can start up in only 0,5s. read more...
Image Cataloger / Experimenting with Kotlin Coroutines (2020)
Concurrency with Kotlin Coroutines for organizing my photo library - Sort by date, extract geolocation coordinates and add the name of the nearest town to the photo's file name read more...
Android App "Save" (2020)
My Android App for storing passwords and other secrets in a secure way, using client-side encryption read more...
Android App "Noty" (2019)
My Android App for taking and organizing notes, following a very simple approach but still incredibly usefull - at least for me read more...
Weather on my balcony / IOT (2018)
Sending weather data from a self assembled station from my balcony and presenting charts with Angular 5 and Dygraphs read more...
Is Kotlin is the better Java? (2017)
Kotlin is around for some time and here I want to show some practical experiences from converting one of my existing Java 8 projects to Kotlin. Is it worth the effort, what are the benefits? As an example here I take the back end part of my stock prices charting application read more...
My Server - no cloud any more (2016)
Instead of going into the cloud (like almost everybody) I built my own home server, with only 6 Watt of power consumption (without load), and a performance much better when compared to a Raspberry Pi for example read more...
Web Password Save (2016)
Considered (very) secure! My password save uses real end to end encryption with a javascript symmetric encryption library read more...
Mobile Time Tracker (2016)
Angular 2 is out. I wanted to give it a try and implemented a new time tracker running on my smart phone's browser. Demo as well as sources are included read more...
Stock Charts (2016)
Stock Charts can visualize hand-picked stocks as graphs read more...
Time Tracker (2015)
Time Tracker is meant for tracking the time you work on a project read more...
Extreme Feedback Device (2015)
The lights app takes your build server's status via http and controls a feedback device accordingly read more...
Ants Simulation (including Demo) (2014)
Small piece of software originating from a code retreat in Munich. Some ants are searching and gathering food, while communicating with each other regarding the best food locations read more...