CBOR is a general-purpose schema-less binary data format, defined in RFC 7049. This package provides a C library for parsing and generating CBOR. The main features are:

Free, open source C++ library, offering some basic functionality to build high-performing, platform-independent programs. Some of the highlights include:

The libuser library implements a standardized interface for manipulating and administering user and group accounts. The library uses pluggable back-ends to interface to its data sources.

This library is intended for developers who wish to manipulate (read, parse, modify, and create) symbolic expressions (s-expressions) from C or C++ programs.

Rust is a curly-brace, block-structured expression language. It visually resembles the C language family, but differs significantly in syntactic and semantic details. Its design is oriented toward concerns of "programming in the large", that is, of creating and maintaining boundaries - both abstract and operational - that preserve large-system integrity, availability and concurrency.

skalibs is a package centralizing the free software / open source C development files used for building all software at skarnet.org: it contains essentially general-purpose libraries. You will need to install skalibs if you plan to build skarnet.org software. The point is that you won't have to download and compile big libraries, and care about portability issues, every time you need to build a package: do it only once.