Andreas Knöpfle

I'm currently working at bitcrowd GmbH in Berlin. I studied computer science at Freie Universität Berlin. I also work and worked on some other projects mostly in Ruby on Rails and now starting a bit with Elixir. Check out the projects below or visit my github profile for more. Hope you like my little blog.


Fairmondo is an open-source marketplace I've been working on for more than 3 years now. It's online for Germany on Customers can sell and buy anything that is legal on the German market. There is a focus on fairtrade and ecologic products. Check it out.

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We've all at some point written code in our projects that really should have been an extracted module, but we just don't have the time to extract it and make it into a lib. is the place to showcase these treasures so that others may find and use them, maybe even make it into a lib themselves. A project that I worked on during the RailsRumble with two of my colleagues.


This is a project that I do for my master thesis. It is supposed to be a fork of gitlab that supports ontology files.
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