Independent consultant, open-source enthusiast (openSUSE, Drupal, etc). Also a big classical music lover (artistic manager of the Huygensfestival in Voorburg, supporter of several international chamber music festivals in/around The Hague, The Netherlands). One of my companies basic philosophies is, if open-source provides you with a stable revenue (thank you, 10x), you should do something in return. So my company donates 10% of its annual profit to one of the projects we’ve been using that year. This contribution can also be by providing help, i.e. in 2015 I was project lead and organizer for openSUSE conference in The Hague!