Hi @rougier,

Could you please tell is it possible to create recent version of the book using the repository by myself?

I started to install required system/python packages and have an errors when running make all, for example:

Latexmk: 'xelatex': source file 'ean13.tex' doesn't exist. I'll try making it...

There are a lot of fixes in repository which are not in pdf in the book folder, and it will be great to include these fixes in pdf version.

Thank you.