Add a user to the Prosody XMPP server

The control tool for the Prosody XMPP server.
More information: <https://prosody.im/doc/prosodyctl>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

sudo prosodyctl adduser {{[email protected]}}

click the source code to copy install prosodyctl on any operating system with command-not-found.com