SKK dictionary server based on cdb

https://github.com/jj1bdx/dbskkd-cdb

Message bus system for inter-application communication

http://www.freedesktop.org/Software/dbus

GLib bindings for the D-BUS messaging system

https://www.freedesktop.org/wiki/Software/DBusBindings/

Distributed Checksum Clearinghouse bulk email detector

https://www.rhyolite.com/dcc/

Configuration database system for GNOME

https://wiki.gnome.org/Projects/dconf

Configuration database editor for GNOME

https://wiki.gnome.org/Projects/dconf

Update dynamic DNS entries

https://github.com/ddclient/ddclient

Data recovery tool

https://www.gnu.org/software/ddrescue/ddrescue.html

Simple Kana to Kanji conversion program on Emacsen

http://openlab.ring.gr.jp/skk/ddskk.html

Command-line utility for converting a Debian .deb file to a .tar.gz

Install Debian base system into a directory

https://wiki.debian.org/Debootstrap

Model to synchronize multiple instances over DBus

https://launchpad.net/dee

Automated program/system tester

http://www.gnu.org/software/dejagnu/

Bitstream Vera Fonts clone with a wider range of characters

https://dejavu-fonts.github.io/

Debugger for the Go programming language

https://github.com/go-delve/delve

Couple of command line utilities for working with desktop entries

https://www.freedesktop.org/wiki/Software/desktop-file-utils/

8086 development tools

http://homepage.ntlworld.com/robert.debath/

AMD and Intel CPUs microcode updates

AMD CPUs microcode updates

Intel CPU microcode updates

https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files

Developer help browser for GNOME 3

http://www.imendio.com/projects/devhelp/

Devil's dictionary (EPWING V1 format)

http://openlab.ring.gr.jp/edict/fpw/

Tool to effectively maintain todo lists aimed at developers

http://swapoff.org/devtodo.html

Wonderful Sega Genesis/MegaDrive emulator

http://dgen.sourceforge.net/

KAME DHCP6 client, server, and relay

http://wide-dhcpv6.sourceforge.net/

Decode and diagnose sniffed DHCP packets

http://www.mavetju.org/unix/general.php

Disk Information Utility

https://diskinfo-di.sourceforge.io/

Diagram creation program, similar to Visio

https://live.gnome.org/Dia

Console Interface to configure ports

https://bitbucket.org/m1cro/d4p/

Console Interface to configure ports

https://bitbucket.org/m1cro/d4p/

Simple English/German dictionary

Simple english/german dictionary

http://www.de.freebsd.org/~wosch/dict/dict.cgi

Dict protocol (RFC 2229) server

http://www.dict.org/

GNU diff utilities

http://www.gnu.org/software/diffutils/diffutils.html

Digital logic designer and circuit simulator

https://github.com/hneemann/Digital

Monospace bitmap font, primarily aimed at programmers

http://www.donationcoder.com/Software/Jibz/Dina/

German-English dictionary program for X windows/Unix

https://www-user.tu-chemnitz.de/~fri/ding/

Graphical diff tool

http://freecode.com/projects/dirdiff/

C implementation of the Markdown markup language

https://www.pell.portland.or.us/~orc/Code/discount/ https://github.com/Orc/discount

Frontend to xgamma

http://gnu.ethz.ch/linuks.mine.nu/displaycalibrator/

Distribute compilation of C(++) code acrosss machines on a network

http://distcc.org

Extremely fast library for floating-point convolution

http://cr.yp.to/djbfft.html

DjVu base libraries and utilities

http://djvu.sourceforge.net/

Domainkeys filter for Postfix

http://jason.long.name/dkfilter/

FTP benchmark program

http://www.kegel.com/dkftpbench/

Another hyper make utility

http://code.google.com/a/apache-extras.org/p/dmake/

Portable debug memory allocation library

http://dmalloc.com/

X11 menu application designed for the dwm window manager

https://tools.suckless.org/dmenu

Tool for dumping DMI (SMBIOS) contents in human-readable format

https://www.nongnu.org/dmidecode/

Distributed.net distributed computing project client

http://www.distributed.net/