DictEm is an extremely customizable DICT client for (X)Emacs. It implements all functions of the client part of the DICT protocol (RFC-2229). Unlike dictionary.el, it widely uses autocompletion that is used for selecting a dictionary and search strategy. It provides several hooks that may be used for buffer postprocessing. Built-in hyperlinking and a highlighting mechanism are based on this ability. It supports the mechanism of virtual dictionaries that can be used for grouping dictionaries from different DICT servers into the client-side virtual dictionary.
Ecf (Emacs Configuration Framework) is a versatile configuration package for Emacs. It is meant for users whose Emacs configuration has become so complex that it appears to be unmanageable. It enables you to write and load the configuration for individual Emacs packages in pieces. You can use it to setup some autoloads for a package when you start Emacs and then do extra configuration after the package has loaded. This speeds up your Emacs startup without compromising your ability to do complicated things.
SLIME is an integrated development environment for Common LISP which does everything you would expect from an IDE: code evaluation, compilation, macro expansion, and auto-completion. It also finds definitions of functions, and marks LISP forms which the compiler finds to be erroneous. It provides easy access to implementation-specific online documentation as well as the ability to look up symbols in the ANSI Common Lisp HyperSpec. Further, it includes an interactive debugger and object inspector.
The Autotoolset package complements the GNU build system by providing automatic generation of legal notices, automatic generation of GNITS-standard directory trees, a rudimentary portability framework for C++ programs, support for writing portable software that uses both Fortran and C++, additional support for writing software documentation in Texinfo and LaTeX, and a manual introducing both Autotools and the GNU build system in a unified task-oriented manner.
Plash is a sandbox for running GNU/Linux programs with minimum privileges. It is suitable for running both command line and GUI programs. It can dynamically grant Gtk-based GUI applications access rights to individual files that you want to open or edit. This happens transparently through the Open/Save file chooser dialog box, by replacing GtkFileChooserDialog. Plash virtualizes the file namespace and provides per-process/per-sandbox namespaces. It can grant processes read-only or read-write access to specific files and directories, mapped at any point in the filesystem namespace. It does not require modifications to the Linux kernel.
Xtla is the Emacs front-end to the GNU Arch revision control system. It provides user-friendly wrappers for tla native commands and some higher level features such as the bookmark manager. The main features are a PCL-CVS-like interface for tla inventory and tla changes, an archive browser, good integration in Emacs, a bookmark manager, integration with ediff, Emacs's graphical diff tool, an interface to view missing patches from all your partners with a single command, and an Emacs mode for arch-related files (log files, =tagging- method).