As a teacher and mathematician I am a big fan of GeoGebra, not only as a user but also as a developer! I am connected with some interesting features including grammar support for the Hungarian language, the new Relation Tool (which offers theorem proving for GeoGebra) and symbolic locus/envelope computations. My most important work is to manage our automated build system. I currently work as an assistant professor at The Private University College of Education of the Diocese of Linz. I have two kids and a wonderful wife... ...And a lot of challenging materials here! :-) Check them out!