I'm a passionated PHP and open-source enthusiast. Working in professional PHP development projects for more than 10 years, I co-founded Qafoo GmbH in mid 2010, which helps people to produce high quality PHP code.
Q&A for professional and enthusiast programmers
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Q&A for enthusiasts and power users of the Android operating system
Q&A for computer enthusiasts and power users
Q&A for Ubuntu users and developers