RWMA (Ruby window manager addons) is a modular wrapper around dmenu and dzen for adding various keyboard driven actions to (usually minimalistic) window managers, inspired by ruby-wmii. Its main purpose is launching programs and displaying notifications, but it can be expanded with plugins (for example translation, music player control, and volume control).
Bind DLZ on Rails is a Web-based user interface for managing BIND with the bind-dlz extensions on a MySQL 5.0 backend. BIND is a DNS server, and the bind-dlz extensions enhance BIND with support for database backeneds. This simplifies the management of thousands of zones and provides added redundancy (by way of database replication).