How can people self-register on a list? (Public registration link)

Is there a way for people to add their own profile through a link prior to an event?
Can people get the QR code after registration?

Answer -
Yes! - We released the public registration link feature. You can send out a private link to a registration form, people who register will be added to the list, and can be checked in prior to arrival (e.g. for an event).