repositor.io is a tool for creating and managing Linux repositories. It can mirror online repositories so that you don't need to download packages every time you set up a new server, and it makes it easy to create custom repositories for your own packages. With the integration of a configuration management tool, you can create consistent installations on your servers.
XML-Grammar-Fiction is a Perl package that provides processors for lightweight markup languages and corresponding XML grammars for writing prose (e.g. stories, novels, and novellas) as well as screenplays. The XML grammars can in turn be translated to XHTML and DocBook/XML. XML-Grammar-Fiction currently offers only very basic functionality, but has good support for UTF-8 and allows one to write bidirectional texts conveniently. It is still under development and may exhibit some quirks.