Microsoft, Apple, IBM, Oracle, Google, Facebook… The history of IT and the Internet is full of capitalist success stories. And yet, the success of open-source software cannot be ignored. Opposing the vision of the future ruled by the types of Bill Gates and Steve Jobs, the GNU/Linux world favours the free sharing of industrial secrets and neglects the profits. The inventor of the open-source license was even dubbed a communist by the founder of Microsoft. Do you understand the thinking behind open-source software? Here is a little something for inspiration.