Tools

Programming-Tools
IntelliJ

Operating Systems
IMac, 16 GB memory
VM: paralles Software
Windows 10, 16 GB memory
VM: Oracles VirtualBox
Linux Mint
Linux Ubuntu

Methods
TDD (test driven design)

Languages
Java
VBA 

Current Projects
filterpictures (on github, edleijnse): tool to analyze pictures (JPG format) with Microsoft's vision software and EXIFTOOL.
acdp database (developed by Beat Hörmann from Triangulum Software): to be published Mid 2020.