There's a lot more to commercial DTP than PostScript, which is 80s technology and doesn't include features that are standard in PDF and XML. And the next part of the project is putting together a PHP front end for a website which will dump XML content into InDesign templates automatically, so that when we do this all again next year all of the content will be collected in a single database and copied onto tagged spreads in a single pass.

I'll do code if it makes life simpler, but I object to pissing about with it when there are simpler and faster tools available, or if its main appeal seems to be as a tribal marker for the cool kids. There's a lot of the latter around Open Source, and very little of it can hold its own against standard issue features in commercial software.