A programmer's editor, written entirely in Ruby and thus easy to extend with Ruby customizations. Summary of the features, developers weblog, information about the development and download and installation instructions.
A free open source text editor for the Linux platform. The source code is available for download. The site also provides some information on how to develop an editor in the Linux console environment using the ncurses library.
Editor for extensible, structured and WYSIWYG technical documents, which was both inspired by TeX and GNU Emacs. The site provides documentation, source and binary packages, a feedback section and additional links.