Nheko want to provide a native desktop app for the Matrix protocol that feels more like a mainstream chat app and less like an IRC client.

Many matrix features are supported, including user registration, rooms, typing notification, emojis, E2E encryption, and voip calls.

This module implements XEP-0363: it allows clients to upload files over HTTP.

Poezio is a free console XMPP client (the protocol on which the Jabber IM network is built). Its goal is to let you connect very easily (no account creation needed) to the network and join various chatrooms, immediately. It tries to look like the most famous IRC clients (weechat, irssi, etc). Many commands are identical and you won't be lost if you already know these clients. Configuration can be made in a configuration file or directly from the client. You'll find the light, fast, geeky and anonymous spirit of IRC while using a powerful, standard and open protocol.

HexChat lets you connect to multiple IRC networks at once. The main window shows the list of currently connected networks and their channels, the current conversation and the list of users. It uses colors to differentiate between users and to highlight messages. It checks spelling using available dictionaries. HexChat can be extended with multiple addons.

Gajim aims to be an easy to use and fully-featured XMPP chat client. It is extensible via plugins, supports end-to-end encryption (OMEMO and OpenPGP) and available in 29 languages.

Purple-Mattermost is a plug-in for Purple, the instant messaging library used by Pidgin and Bitlbee, among others, to access Mattermost servers.

LibGadu is library for handling Gadu-Gadu instant messenger protocol. The library is written in C and aims to be operating system and environment independent.

GNU Freetalk is a command-line Jabber/XMPP chat client. It notably uses the Readline library to handle input, so it features convenient navigation of text as well as tab-completion of buddy names, commands and English words. It is also scriptable and extensible via Guile.

Python-nbxmpp is a Python library that provides a way for Python applications to use the XMPP network. This library was initially a fork of xmpppy.

Meanwhile is a library for connecting to a LIM (Lotus Instant Messaging, formerly Lotus Sametime, formerly VPBuddy) community. It uses a protocol based in part off of the IMPP draft(*1), and in part off of traces of TCP sessions from existing clients.

Libstrophe is a minimal XMPP library written in C. It has almost no external dependencies, only an XML parsing library (expat or libxml are both supported).

Psi+ is a spin-off of Psi XMPP client. It is a powerful XMPP client designed for experienced users.

This module implements XEP-0198: when supported by both the client and server, it can allow clients to resume a disconnected session, and prevent message loss.

MQTT and MQTT-SN are lightweight publish/subscribe messaging transports for TCP/IP and connection-less protocols (such as UDP). The Eclipse Paho project provides client side implementations of MQTT and MQTT-SN in a variety of programming languages. This package is for the Python implementation of an MQTT version client class.

Psi+ is a spin-off of Psi XMPP client. It is a powerful XMPP client designed for experienced users.

Bitlbee-discord is a plugin for Bitlbee which provides access to servers running the Discord protocol.

WorldEdit is a mod for Luanti. It allows for creating various geometric shapes and copying regions. It can also export and import regions to and from the file system.

Luanti is a voxel game engine that supports modding and game creation using its Lua modding API. It allows playing a wide range of voxel-based games, installing mods and texture packs. This package only provides the base platform, users need to install games themselves (for example, luanti-minetest-game), either through Guix, the built-in interface or other sources.

The homedecor Luanti mod provides a large seleection of items that might be found inside and around homes, such as sofas, chairs, tables, fences and a variety of other stuff.

This Luanti mod provides an API for registering throwable things and throwing things like arrows. However, this mod does not provide an actual arrow and bow, but luanti-throwing-arrows does.

Mesecons is a mod for Luanti implementing various items related to digital circuitry, such as wires, buttons, lights and programmable controllers. Among other things, there are also pistons, solar panels, pressure plates and note blocks.

Mesecons has a similar goal to Redstone in Minecraft, but works in its own way, with different rules and mechanics.

This mod features realistic trains and various equipment for railways, with a focus on automated train operation. This package contains no actual trains, please use luanti-basic-trains.

Main features:

• almost-realistic tracks with actual curves and switches;

• railway signals, controllable by various means;

• ATC: simple, command-like automatic train control;

• LuaATC: Powerful Lua-scripted automatic train operation (requires some programming knowledge);

• an interlocking system, featuring track sections, routes and automatic stopping before signals.

This Luanti mod provides an API for adding mods (moving entities like animals and monsters), but does not include any mobs itself. To actually add some mobs, a mod like e.g. mobs_animal provided by the luanti-mobs-animal package needs to be enabled.

The purpose of this mod originally was to supply a complete set of colours for Luanti mod authors to use for colourised nodes or reference in recipes. Since the advent of the default dyes mod in the standard Luanti game, this mod has become an extension of the default mod an a library for general colour handling.