At any AEC Hackathon BIMserver (and other open source BIM tools) are used to improve the built environment. The AEC Hack event in the Netherlands took place in Eindhoven last weekend. Since this is the birth place of BIMserver, many participants seemed very enthusiastic to use it.
The 45 participants from over ten different countries built their solutions to the challenges using multiple different open source BIM tools. All the results from évery team have also been publicly published again. A great example on how you can make the world a better place when you put your mind to it.