I'm in the process, with a friend, of writing a PHP primer for beginners that'll eventually be released as a free title. We'd planned to use one of the Bitnami stacks to save us having to write a whole chapter on setting up the stack (it's much easier to say "Go here, download this") but one thing we did plan to use was a templating system, specifically Smarty, since the focus of our primer will be on using PHP scripts with templates to generate pages, rather than on dropping little snippets of PHP into HTML pages. It reduces the need for the readers to know HTML, and we can provide 'pretty' versions of the standard pages.
However, there's no package for Smarty. Since it's widely used for templating in other, more complex systems, is there a package that'll implicitly install it, or is it something that isn't supported purely for license/open source reasons? If we have to make the Smarty install manual, the install chapter is going to be a couple of paragraphs on getting the \APP stack up and running, and then several pages on telling people how to install Smarty, which is something that we'd rather not* do. If Smarty isn't around, but another templating package is, we'll use that but since my own expertise is in Smarty, I'd rather stick with what I know.