msgspec is a fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML. It includes the following features:

• High performance encoders/decoders for common protocols.

• Support for a wide variety of Python types.

• Zero-cost schema validation using familiar Python type annotations.

• A speedy Struct type for representing structured data.

ckdl is a C library for parsing and emitting KDL. This package also provides kdlpp, a C++20 wrapper around ckdl.

qtcsv is a library for reading and writing CSV files in Qt.

ckdl is a C library for parsing and emitting KDL. This package also provides kdlpp, a C++20 wrapper around ckdl.

Libmpack is a small binary serialization and RPC library that implements both the msgpack and msgpack-rpc specifications.

Msgpack is a library for C that implements binary serialization.

Cap'n Proto is a very fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster.

This package provides a Python wrapper library to the Apache Arrow-based Feather binary columnar serialization data frame format.

This package provides YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order. It is a derivative of Kirill Simonov’s PyYAML 3.11. It supports YAML 1.2 and has round-trip loaders and dumpers. It supports comments. Block style and key ordering are kept, so you can diff the source.

FlatBuffers is a cross-platform serialization library for C++,C#, C, Go, Java, JavaScript, PHP, and Python. It was originally created for game development and other performance-critical applications.

This package provides a C version of the reader, parser and emitter for ruamel.yaml derived from libyaml.

GNU Serveez is a server framework providing the routines necessary to easily implement IP-based servers in your application. It demonstrates aspects of network programming in a portable manner, making it convenient for both simplifying the process of adding a server to your application or for learning about how network services work. Several example servers are provided already, such as an HTTP server and an IRC server.

Linenoise is a minimal, zero-config, readline replacement. Its features include:

1. Single and multi line editing mode with the usual key bindings

2. History handling

3. Completion

4. Hints (suggestions at the right of the prompt as you type)

5. A subset of VT100 escapes, ANSI.SYS compatible

Dash is a POSIX-compliant /bin/sh implementation that aims to be as small as possible, often without sacrificing speed. It is faster than the GNU Bourne-Again Shell (bash) at most scripted tasks. Dash is a direct descendant of NetBSD's Almquist Shell (ash).

loksh is a Linux port of OpenBSD's ksh. It is a small, interactive POSIX shell targeted at resource-constrained systems.

mksh is an actively developed free implementation of the Korn Shell programming language and a successor to the Public Domain Korn Shell (pdksh).

Tcsh is an enhanced, but completely compatible version of the Berkeley UNIX C shell (csh). It is a command language interpreter usable both as an interactive login shell and a shell script command processor. It includes a command-line editor, programmable word completion, spelling correction, a history mechanism, job control and a C-like syntax.

Oksh is a portable OpenBSD ksh. Not an official OpenBSD project. Unlike other ports of OpenBSD ksh, this port is entirely self-contained and aims to be maximally portable across operating systems and C compilers.

Xonsh is a Python-ish, BASHwards-looking shell language and command prompt. The language is a superset of Python 3.4+ with additional shell primitives that you are used to from Bash and IPython. It works on all major systems including Linux, Mac OSX, and Windows. Xonsh is meant for the daily use of experts and novices alike.

Yash, is a POSIX-compliant command line shell written in C99. Yash is intended to fully comply with POSIX when invoked as sh, treating undefined and unspecified behaviour as errors, while also supporting features for daily interactive and scripting use when invoked regularly.

The Z shell (zsh) is a Unix shell that can be used as an interactive login shell and as a powerful command interpreter for shell scripting. Zsh can be thought of as an extended Bourne shell with a large number of improvements, including some features of bash, ksh, and tcsh.

Oils is a programming language with automatic translation for Bash. It includes OSH, a Unix/POSIX shell that runs unmodified Bash scripts and YSH is a legacy-free shell, with structured data for Python and JavaScript users who avoid shell.

S is a new shell that aims to be extremely simple. It does not implement the POSIX shell standard.

There are no globs or "splatting" where a variable $FOO turns into multiple command line arguments. One token stays one token forever. This is a "no surprises" straightforward approach.

There are no redirection operators > in the shell language, they are added as extra programs. > is just another unix command, < is essentially cat(1). A andglob program is also provided along with s.

Gash-Utils provides Scheme implementations of many common POSIX utilities (there are about 40 of them, ranging in complexity from false to awk). The utilities are designed to be capable of bootstrapping their standard GNU counterparts. Underpinning these utilities are many Scheme interfaces for manipulating files and text.