This package provides plugins to use MySQL or MariaDB as the database backend of an Orthanc DICOM server instead of SQLite.

NYACC is set of Guile modules for generating parsers and lexical analyzers. It provides sample parsers, pretty-printers using SXML trees as an intermediate representation, a decent C parser and an `FFI Helper' tool to help create Guile Scheme bindings for C-based libraries. It also provides (partially implemented) compilers based on these parsers to allow execution with Guile as extension languages.

Mescc-tools is a collection of tools for use in a full source bootstrapping process. It consists of the M1 macro assembler, the hex2 linker, the blood-elf symbol table generator, the kaem shell, exec_enable and get_machine.

GNU Mes--Maxwell Equations of Software--brings the Reduced Binary Seed bootstrap to Guix and aims to help create full source bootstrapping for GNU/Linux distributions. It consists of a mutual self-hosting Scheme interpreter in C and a Nyacc-based C compiler in Scheme and is compatible with Guile.

NYACC is set of Guile modules for generating parsers and lexical analyzers. It provides sample parsers, pretty-printers using SXML trees as an intermediate representation, a decent C parser and an `FFI Helper' tool to help create Guile Scheme bindings for C-based libraries. It also provides (partially implemented) compilers based on these parsers to allow execution with Guile as extension languages.

NYACC is set of Guile modules for generating parsers and lexical analyzers. It provides sample parsers, pretty-printers using SXML trees as an intermediate representation, a decent C parser and an `FFI Helper' tool to help create Guile Scheme bindings for C-based libraries. It also provides (partially implemented) compilers based on these parsers to allow execution with Guile as extension languages.

M2-Planet, the PLAtform NEutral Transpiler, when combined with mescc-tools, compiles a subset of the C language into working binaries with introspective steps in between. It is self-hosting and for bootstrapping it also has an implementation in the M1 macro assembly language. M2-Planet is built as Phase-5 of the full source bootstrapping process and is capable of building GNU Mes.

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.

Chatty is a chat program for XMPP and SMS. It works on mobile as well as on desktop platforms. It's based on libpurple and ModemManager.

Libircclient is a library which implements the client IRC protocol. It is designed to be small, fast, portable and compatible with the RFC standards as well as non-standard but popular features. It can be used for building the IRC clients and bots.

Quaternion is a Qt desktop client for the Matrix instant messaging protocol. It uses libqmatrixclient and is its reference client implementation.

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.

This module implements support for a Tigase XMPP extension, Priority of notifications. It is a custom extension to XEP-0357: Push Notifications.

Biboumi is a Free, Libre and Open Source XMPP gateway that connects to IRC servers and translates between the two protocols. Its goal is to let XMPP users take part in IRC discussions, using their favourite XMPP client.

C library implementation of the Tox encrypted messenger protocol.

Loudmouth is a lightweight and easy-to-use C library for programming with the XMPP (formerly known as Jabber) protocol. It is designed to be easy to get started with and yet extensible to let you do anything the XMPP protocol allows.

Prosody is a modern XMPP communication server. It aims to be easy to set up and configure, and efficient with system resources. Additionally, for developers it aims to be easy to extend and give a flexible system on which to rapidly develop added functionality, or prototype new protocols.

weechat-wee-slack is a WeeChat native client for Slack. It provides supplemental features only available in the web/mobile clients such as synchronizing read markers, typing notification, threads (and more)! It connects via the Slack API, and maintains a persistent websocket for notification of events.

BitlBee brings IM (instant messaging) to IRC clients, for people who have an IRC client running all the time and don't want to run an additional IM client. BitlBee currently supports XMPP/Jabber (including Google Talk), MSN Messenger, Yahoo! Messenger, AIM and ICQ, and the Twitter microblogging network (plus all other Twitter API compatible services like identi.ca and status.net).

This package provides account management tools for Discord.

libsignal-protocol-c is an implementation of a ratcheting forward secrecy protocol that works in synchronous and asynchronous messaging environments. It can be used with messaging software to provide end-to-end encryption.

Purple-lurch plugin adds end-to-end encryption support through the Double Ratchet (Axolotl) algorithm, to libpurple applications using XMPP,through its standard XEP-0384: OMEMO Encryption. It provides confidentiality, (weak) forward secrecy, break-in recovery, authentication, integrity, deniability, and asynchronicity.

Relays messages between different channels from various messaging networks and protocols. So far it supports mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API. Mattermost is not required.

This package provides Ejabberd -- Robust, Ubiquitous and Massively Scalable Messaging Platform. It supports XMPP, MQTT and SIP protocols.