Client registration is open so all you have to do to start using Jabber/XMPP on NixNet is open your favourite client, enter `nixnet.xyz` as the host, come up with a username, generate a strong password, and enjoy!
You can also navigate to [xmpp.nixnet.xyz/register/](https://xmpp.nixnet.xyz/register/) to register using the web UI as well as change your password and unregister your account.
After that, there are a few settings you'll have to change depending on your client. I use [Gajim](https://gajim.org) on Linux so I'll explain how to do it with that.
*`Add Account -> I want to register for a new account`
If you're not sure what client to use, I recommend [Conversations](https://f-droid.org/en/packages/eu.siacs.conversations/) for Android, [Kaidan](https://www.kaidan.im/) for [Ubuntu Touch](https://ubuntu-touch.io), [ChatSecure](https://chatsecure.org/) or [Monal IM](https://monal.im/) for iOS/macOS (I haven't tested them but I have heard good things), and [Gajim](https://gajim.org/) for Linux and Windows.