Over the years I have worked on lots of software projects, such as:
MoviePosterDB library: a library to access the movie poster DB API.
JSON.NET custom contract resolver: a custom contract resolver for JSON.NET to control what properties get serialized.
Knockout paging: a Knockout extender that adds paging functionality to observable arrays.
Knockout pre-rendered: allows Knockout to be initialized from pre-rendered content (HTML).
Address book app: an iOS and Android application to access the public contact data of Radboud University employees.
PV Discount app: an iOS and Android application to allow PV Radboud members to see at which companies they can get a discount.
RequireJS tutorial: step-by-step introduction to RequireJS.
Client-side globalization: shows how to do globalization on the client.
Custom OAuth client: explains how to create a custom OAuth client for use in ASP.NET websites.
I try to open-source as much of my code as possible. If you want to see more, please visit my GitHub profile.
Besides writing my own software, I really like contributing to existing software: