Beziers provides a variety of classes for constructing, manipulating and drawing Bezier curves and paths. Principally designed for font design software, it allows you to join, split, offset, and perform many other operations on paths.

Defcon is a set of UFO based objects optimized for use in font editing applications. The objects are built to be lightweight, fast and flexible. The objects are very bare-bones and they are not meant to be end-all, be-all objects. Rather, they are meant to provide base functionality so that you can focus on your application’s behavior, not object observing or maintaining cached data. Defcon implements UFO3 as described by the UFO font format.

The purpose of the ufonormalizer command is to provide a standard formatting so that updates to UFO data can be usefully versioned. Examples of formatting applied by ufoNormalizer include:

• Changing floating-point numbers to integers where it doesn't alter the value (e.g. x="95.0" becomes x="95")

• Rounding floating-point numbers to 10 digits

• Formatting XML with tabs rather than spaces.

SmithForth is an implementation of the Forth programming language for x86-64 desktop computers. SmithForth is a text interpreter that runs in a Linux text console.

Gforth is a fast and portable implementation of the ANSI Forth language. It includes an editing mode for Emacs and an interpreter featuring completion and history. A generic virtual machine environment, vmgen, is also included.

FreeForth2 offers a lightweight Forth for x86 GNU/Linux that deftly blends assembly and Forth.

test-drive is a procedural unit testing framework for Fortran.

This library implements an electronegativity equilibration model to calculate partial charges used in the DFT-D4 model.

This library provides an implementation of TOML data serialization and deserialization in Fortran.

mctc-lib (modular computation tool chain library) is a Fortran library for operating on molecular structures and reading and writing common geometry file formats.

This library provides an implementation of the https://www.chemie.uni-bonn.de/grimme/de/software/dft-d3/ dispersion correction.

This library provides an implementation of the DFT-D4 dispersion correction with both a Fortran and a C interface.

This package contains a Fortran interface to obtain molecular geometries used for testing.

Wayland-Protocols contains Wayland protocols that add functionality not available in the Wayland core protocol. Such protocols either add completely new functionality, or extend the functionality of some other protocol either in Wayland core, or some other protocol in wayland-protocols.

This package provides a backend implementation for xdg-desktop-portal which uses GTK+ and various pieces of GNOME infrastructure, such as the org.gnome.Shell.Screenshot or org.gnome.SessionManager D-Bus interfaces.

This package provides Wayland protocols designed for use in wlroots (and other compositors).

xdg-user-dirs is a tool to help manage "well known" user directories, such as the desktop folder or the music folder. It also handles localization (i.e. translation) of the file names. Designed to be automatically run when a user logs in, xdg-user-dirs can also be run manually by a user.

This package provides a straightforward implementation of the XDG Base Directory Specification.

Libinput is a library to handle input devices for display servers and other applications that need to directly deal with input devices.

cChardet is a character encoding detector, written in Python, that binds to the C library uchardet to increase performance.

libportal provides GIO-style async APIs for most Flatpak portals.

Elogind is the systemd project's "logind" service, extracted out as a separate project. Elogind integrates with PAM to provide the org.freedesktop.login1 interface over the system bus, allowing other parts of a the system to know what users are logged in, and where.

Some projects rely on the sd-bus library for DBus support. However not all systems have systemd or elogind installed. This library provides just sd-bus (and the busctl utility).

Gabble is a Jabber/XMPP connection manager for the Telepathy framework, currently supporting:

• single-user chats

• multi-user chats

• voice/video calling

• file transfer

with Jabber/XMPP interoperability.

Telepathy is a D-Bus framework for unifying real time communication, including instant messaging, voice calls and video calls. It abstracts differences between protocols to provide a unified interface for applications.