dc_qt is a Direct Connect client based on DC++. The GUI is based on Qt. The goal of the project is to provide features not seen in other clients, while providing the easiest user interface possible at the same time. One interesting feature is the ability to run the client and the GUI on different machines.
VerliHub is a Direct Connect server (HUB) for Linux. It features banlists for IP addresses, nicks, and hosts, temporary or permanent bans, the ability to register users for a hierarchy of 2 non-op and 4 opertor levels, MySQL data storage, and the ability to change some settings at runtime. It consumes minimal CPU resources and quite moderate RAM resources. Users that are registered for a VerliHub server gain a few advantages. For example, the user won't be affected by an IP address ban that was set against another user who shares the same IP address.