To create a Chaos Account, visit this link and fill in your email address, username, password, first name, last name and country. You can use your username or email address to sign in to your Chaos Account.
Please note that registering with a temporary email is not allowed, and the username cannot be changed once created.
You also have an option to sign in with your existing Google account. The system will take your Google credentials and use them as a Chaos account.