Allows Python modules to be used instead of (La)TeX style files to ease La(TeX) programming.

Allows to manipulate TeX internals using the Scheme programming language. Sourceforge project page and guides.

Project converting the TeX source code from Web to C. Download of code and information on the conversion.

A SourceForge project to develop a run-time TeX library, with support for enhancements such as e-TeX, pdf-e-TeX, Omega.

A freeware typesetting system based on a merger of Donald Knuth's TeX system with Unicode and Mac OS X font technologies. Download, FAQ and mailing list.

Using Scheme as an extension language for TeX. Download, documentation and information about PicScheme.

Software which calls all tools necessary to create PDF, DVI or HTML output out of simple text files (via LaTeX) using LaTeX like syntax. Download and documentation.