be able to understand how non-free documents actually
are constructed. [18:37] So they are really working to be able to understand
non-free documents, to be able to read them, and to be able to develop tools
for them, so that they can be reused and remade. [18:54] So the difference
between a free and a non-free document is that, for example, an InDesign file,
which is the result of a commercial product, there’s no documentation
available to how this file works. [19:10] This means that the only way