The city of Munich, Germany, was pioneer in implementing Open Source Solutions in the municipality's administration.

The reasons go back to 2003 when Microsoft announced that would stop supporting Windows NT 4.0, the city of Munich found the alternative in Open Source Software.

The migration project started in 2006, was considered ambitious and pioneering in Europe. In 2013, 80% of city administration desktops were running LiMux - a Linux based distribution (the name refers to a combination of Linux and Munich). The city has been maintaining both systems - Linux and Windows - for several years, which raised some compatibility problems. That was one of the reasons pointed in 2017, when the city governor announced that would re-implement the proprietary system in the city.

After this setback, the city now announces its return to Open Source solutions. According to the new coalition agreement, negotiated between the Green Party and the Social Democratic Party:

"Where it is technologically and financially possible, the city will put emphasis on open standards and free open-source licensed software"

The city of Munich even associated with the “public money, public code” movement, which means that whenever there are no confidentiality issues, the source code of the city's software will be made public.

The measure is considered a better option in economic and political terms but also promotes administrative transparency.