For pkgsrc development.

pkgsrc

• Supported platforms: Unix-like
• URL: http://www.pkgsrc.org/

• Repository: http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/

• Summary site: http://pkgsrc.se/

pkgsrc-wip

• URL: http://pkgsrc-wip.sourceforge.net/
• Repository: http://pkgsrc-wip.cvs.sourceforge.net/pkgsrc-wip/wip/

pkgsrc-wip-jp

• URL: http://pkgsrc-wip.sourceforge.jp/ (in Japanese)
• Repository: http://sourceforge.jp/cvs/view/pkgsrc-wip/wip-jp/

FreeBSD Ports

• Supported platforms: FreeBSD
• URL: http://www.freebsd.org/ports/

• Repository: http://svnweb.freebsd.org/ports/head/

• Summary site: http://www.freshports.org/

FreeBSD-Gecko Team

• URL: https://wiki.freebsd.org/Gecko
• Repository: https://trillian.chruetertee.ch/svn/freebsd-gecko/

freebsd-wip

• URL: http://sourceforge.net/projects/freebsdwip/
• Repository: http://sourceforge.net/p/freebsdwip/code/HEAD/tree/

OpenBSD Ports

• Supported Platforms: OpenBSD
• URL: http://www.openbsd.org/faq/faq15.html

• Repository: http://www.openbsd.org/cgi-bin/cvsweb/ports/

• Summary site: http://openports.se/, http://ports.su/

openbsd-wip

• URL: https://github.com/jasperla/openbsd-wip
• Repository: https://github.com/jasperla/openbsd-wip

OpenBSD Ports WIP

• URL: https://gitorious.org/openbsd-ports-wip
• Repository: https://gitorious.org/openbsd-ports-wip

DragonFly DPorts

• URL: http://www.dragonflybsd.org/docs/howtos/HowToDPorts/
• Repository: https://github.com/jrmarino/DPorts

MacPorts (formerly called DarwinPorts)

• Supported platforms: Apple OS X, FreeBSD
• URL: http://www.macports.org/

• Repository: https://trac.macports.org/browser/trunk/dports/

• Summary site: http://www.macports.org/ports.php

Fink

• Supported platforms: Apple OS X
• URL: http://www.finkproject.org/
• Repository: http://fink.cvs.sourceforge.net/viewvc/fink/dists/10.7/stable/main/finkinfo/

Homebrew

• Supported platforms: Apple OS X
• URL: http://brew.sh/
• Repository: https://github.com/mxcl/homebrew

Arch Build System (ABS)

• Supported platforms: Arch Linux
• URL: https://wiki.archlinux.org/index.php/Arch_Build_System

• Repository: https://projects.archlinux.org/svntogit/packages.git/, https://projects.archlinux.org/svntogit/community.git/ and ???

• Summary site: https://aur.archlinux.org/

GNU Hurd and FreeBSD repositories separately exist.

Gentoo Portage

• Supported platforms: Gentoo Linux, Apple OS X, *BSD etc.
• URL: http://www.gentoo.org/proj/en/portage/

• Repository: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/

• Summary site: https://packages.gentoo.org/

Other useful repositories

Debian GNU/Linux

• URL: http://packages.debian.org/unstable/

Download *.debian.tar.gz etc. rules is Makefile, and there are patches in its directory.

Ubuntu

• URL: http://packages.ubuntu.com/

Fedora Linux

• URL: https://admin.fedoraproject.org/pkgdb/