The GNUstep GUI library is a powerful library of graphical user interface classes written completely in the Objective-C language; the classes are based upon the OpenStep specification, and provide the user with a traditional nextstep-like look and feel. The classes include graphical objects such as windows, menus, buttons, text fields, popup lists, browsers, scrollviews, splitviews, fonts, colors, images, events, pasteboards... You need the corresponding backend library package (gnustep-back) to use this package.

NATS messaging enables the exchange of data that is segmented into messages among computer applications and services. These messages are addressed by subjects and do not depend on network location. This provides an abstraction layer between the application or service and the underlying physical network. Data is encoded and framed as a message and sent by a publisher. The message is received, decoded, and processed by one or more subscribers.

ncap is a network capture library like libpcap (on which it is based) and tcpdump. It produces binary data in its own ncap format, which can be stored in a dump file or transmitted over a UDP socket. Unlike libpcap, it discards data link headers and only supports IPv4 and IPv6 packets, but it can perform reassembly of IP datagrams.

NCAR Command Language library used by NCAR binaries and tools.

nspark "New Spark unarchiver" supports extracting from Spark and ArcFS files, which originate on RISC OS. It is a cross platform rewrite of David Pilling's original !Spark for RISC OS.

libStatGen is a library for statistical genetic programs. It includes some: A. General Operation Classes including: File/Stream I/O, String processing and Parameter Parsing. B. Statistical Genetic Specific Classes including: Handling Common file formats (Accessors to get/set values, Indexed access to BAM files) and some utility classes, including: 1. Cigar: interpretation and mapping between query and reference. 2. Pileup: structured access to data by individual reference position.