Open source projects I am participating in or have in the past

I have done some work for different open source projects during my time at university and to a certain degree also after I started working. Currently I actively participate in one project with the permission of my employer in my free time.

I am also started some very small projects that are either not of much interest to a general audience or may be of interest, but nobody has found them yet (hint, hint!).

Large projects:

Small projects:

Previous contributions:

Other fun projects (mostly using open source components):