dantalian is a transparent file-tagging system using hard links. Tags (which are directories) can be accessed on the file system level (with or without fuse), allowing maximum interoperability with other applications. Tagging operations are performed with scripts, and can also be hooked into other applications. dantalian is file-agnostic and can be used with any and all types of files. Tags can be organized hierarchically and can also be tagged. With (optional) fuse support, dantalian can also create virtual tags (currently limited to tag intersections (AND), but will be expanded later), which can be accessed transparently on the filesystem level.
Dynamic Form is a Python request abstraction library that lets you write one request handler that will run on multiple Python Web frameworks (such as Django and Google's AppEngine). This allows you to create pages and apps once and use them on multiple projects without concern about which framework is being used. Additionally, it makes AJAX easy. Simply adding nested request classes allows you to define AJAX handlers that can easily be refreshed both sever-side and client-side.
WebElements is a collection of Python objects that enable developers to generate and interact with Web apps on the server side. It encourages object oriented Web site development, and code reuse by separating each DOM element into its own object, and then allowing inheritance and child elements to come together to form new elements not defined in the standard DOM.
HGL is a compiler/interpreter suite for developing images. It features its own simple but powerful language, an output format configurable by plugins, runtime input handled by plugins, and easy integration into various environments like Web servers or graphical applications. The input is taken from a source file, which has to be compiled for quick and frequent access by the interpreter. An interpreter then runs the compiled files, takes input from custom plugins (if neccessary), and outputs its result via custom plugins.
GUI Builder is a drag and drop interface for creating WebElement User Interface (WUI) templates that can be used as the foundation of a responsive Wep app. It simplifies the process of designing applications, and encourages separation of the logic and view. It is part of the WebBot Web development framework, which makes it possible to build Web apps in a similar fashion to Qt/KDE apps.
Getmail Retriever for Roundcube is a fork of the ispcp_fetchmail plugin for Roundcube webmail. getmail is an alternative to fetchmail. This plugin allows your Roundcube users to use getmail to retrieve mail via POP3 or IMAP and deliver that mail to the user. The backend is a PHP-CLI script run from cron which executes getmail according to a combination of settings selected by the administrator and users. Getmail Retriever supports most of what getmail supports.