I am a software developer with a strong passion for open source software, Mozilla and Wikipedia. On the Internet I use the nickname Smile4ever.

I was born on April 16, 1995 in Sint-Niklaas, a city in East Flanders (Belgium). At school, I studied applied computer science between September 2013 and June 2016. I use Manjaro Linux daily.

Apart from my mother tongue Dutch, I also speak and/or understand English, French, German and Afrikaans and in lesser extent also Spanish and Esperanto. In my free time, I like editing the Dutch Wikipedia (Smile4ever), writing software, designing websites and listening to music.

If you like my work, you can make a donation. It is much appreciated:


I made some websites, using HTML 5, CSS 3 and PHP:


I created and adapted some computer applications. I know C#, Visual Basic, Java and Gambas well. Examples: Check out my GitHub-profile: Smile4ever

Browser extensions

I created the following Firefox and Chrome extensions: You can see the complete overview on GitHub.

User styles and scripts

Below user styles and scripts are compatible with Firefox, Chrome and other browsers. You can see an overview of my user styles on userstyles.org.

Tools and tests


I participate to several projects on the Internet. Nicknames I use include Smile4ever, computergeoffrey and smile.

Wikimedia Projects:

And the following (free) software projects: