s6-networking is a collection of small Unix tools designed to help networking. It includes clock synchronization, Unix and TCP super-servers, Unix and TCP access control, and other miscellaneous utilities. It is particularly suited for management of clients and servers on embedded devices, but works just as well on larger systems.
s6-dns is a small, efficient, complete, and IPv6-ready DNS client library, with synchronous as well as asynchronous APIs. It is designed to replace libresolv in projects that need to perform DNS resolution. It also comes with small command-line utilities to make common and not so common DNS queries.
Neatroff is a new implementation of the troff typesetting system. It extends the original troff with utf-8 text encoding support, named environments, long register and macro names, changing of text colors, arbitrary font ligatures and pairwise kerning, bidirectional text rendering, and keshideh line adjustment.
LibMCore is a library that provides some functions to create asynchronous or synchronous lightweight process and generic queue processing. Some other basic functions are also available to count core number, to enable the real-time scheduler, to set core affinity, or to manipulate cycle counters.
DiskScan scans the entire surface of a disk, alerts when a sector is unreadable, and uses the read timing to warn when a sector is having problems. It will tell when a disk has failed and already has bad sectors and also when the disk is near failure and takes too long to read the data.