To register you must fill out the registration form, you can find it at this link.
Registration requires a minimum of data to identify you. Name, username and email. Nothing else.
This minimum is necessary to be able to somehow confirm that this user is linked to someone.
The email is basically so that we can communicate and so that you can recover your password in case you forget it, please enter an email that exists so that you can recover your password in case of loss.
To register you must fill out all the fields that have an * once you access your profile. If you wish, you can fill in other fields such as your social networks.