Software development with Java, Kotlin, C, C++ and Python
Android development for Smartphones and Tablets
Web development with HTML, PHP, CSS and JavaScript
Embedded (IoT) programming and basic circuit layouting
Technical Drawing with Solid Works
Tangent Lines - Android Development (Google Play Store)
Application to Create 3D models from greyscale heightmaps
Java Swing Wallpaper Generator
Various 3D printing, lasercutting and electronic projects (see below)