The 'download.sh' file mentioned under 'Download Pillar' is not there. There's a 'subdownload.sh' file, but that doesn't do or output anything, and looking into it, the URL returns a 404 (
https://raw.githubusercontent.com/pillar-markup/pillar/master/download.sh).
So I manually cloned the pillar git project from
https://github.com/pillar-markup/pillar. I checked out tag v7.7.4, since that was mentioned for Pharo booklets. Building that works, resulting in a pillar 'executable'.
However, after installing MacText, executing 'pillar build pdf' fails with the message: FileDoesNotExistException: '/Users/jvalteren/git/EnterprisePharo/_support'. Looking at the structure created by the command 'pillar archetype book', it seems that '_support' is the new name for the 'support' folder that does.