tinc is a daemon with which you can create a virtual private network (VPN). One daemon can handle multiple connections, so you can create an entire (moderately sized) VPN with only one daemon per participating computer.

The Common UNIX Printing System (or CUPS(tm)) is a printing system and general replacement for lpd and the like. It supports the Internet Printing Protocol (IPP), and has its own filtering driver model for handling various document types.

KCemu is an emulator for the KC85 homecomputer series and other Z80 based microcomputers like Z1013, LC80, Polycomputer 880 and BIC A5105. The emulation supports a number of additional hardware, e.g. floppy disk drives and extended graphic modules.

PackageKit allows performing simple software management tasks over a DBus interface e.g. refreshing the cache, updating, installing and removing software packages or searching for multimedia codecs and file handlers.

PPP over Ethernet (PPPoE) is a protocol used by many ADSL Internet service providers. This package allows you to connect to those PPPoE service providers.

IPsec (Internet Protocol security) offers end-to-end security for network traffic at the IP layer.