Matrix also written matrix is an open source project and a communication protocol. The protocol standard is open and it is free to use or implement. Matrix is being recognized as a modern successor to the older Internet Relay Chat IRC protocol. Mozilla KDE FOSDEM and GNOME are among several large projects that have started using chat clients and servers that operate over the Matrix protocol. Members of the Fedora project have discussed whether or not the community should switch to using the Matrix protocol.
The Matrix project has implemented an IRC bridge to enable communication between IRC networks for example freenode and Matrix homeservers. This article is a guide on how to register identify and join freenode channels from a Matrix client via the Matrix IRC bridge.
Check out Beginner8217s guide to IRC for more information about IRC.
You need to set everything up before you register a nick. A nick is a username.