No, there's no separate "sign up" process. Just log in here for the first time, and a myFDLRS account will be created for you!
However, to activate your Moodle gateway, you'll need to register for a course through your local FDLRS center and receive an enrollment key.
Your work email is preferred unless your district commonly blocks emails from outside sources, or is difficult to access.
Ultimately, you should use a stable email that you can ideally access from anywhere.
It doesn't need to be the same email you used to register for a course.
This helps us prevent some bad behavior from robots.
Thank you for your cooperation, human!