Dolda Webmail (or d-mail for short) is a Webmail system written in PHP and interfacing with a back-end IMAP server. Advantages over most other projects of a similar sort are that it uses a persistant connection to the IMAP server (which increases performance on the Web server, reduces load on the network and on the IMAP server, and doesn't force the Web server to store the user's password in-core), and that it makes full use of XHTML 1.1 and CSS 2.
The LIRC Client Daemon is a per-user daemon that sits between the LIRC daemon (from the Linux InfraRed Control project) and any other programs that use LIRC. It ships with a replacement library for LIRC's liblirc_client, which connects to lirccd instead of lircd. This primarily helps solve the synchronization present in the standard liblirc_client, and also empowers the user with a much more flexible configuration file format.
Dolda Connect is a modular P2P filesharing client built around the Direct Connect model. It supports most of the latest features of the DC protocol. It runs in client/server mode with a well defined protocol, allowing extensibility, flexibility, and multiple detachable user interfaces. It also has an optional multi-user mode.
Ashd is an HTTP server that follows standard Unix philosophy for modularity. Instead of being a monolithic program with loadable modules, as most other HTTP servers seem to be, Ashd is simply a collection of much simpler programs, passing HTTP requests to each other using a simple protocol. The model also allows such handler programs to persist properly, so that, for example, session data can be kept in memory, connections to back-end services can be kept open, and so on.
The PDM library aids in inspecting and managing Python programs running as daemons, allowing client programs to connect to the daemon process in order to interact with it in various ways. Primarily, it provides an interactive read-eval-print loop, and a non-interactive programmatic interface not entirely unlike Java's JMX.