How to hide element in a dynamic page depending on boolean value

Hi! I’m working on an online library where people can mark their names on the website, and then come pick it up in person, but I need to make it so that when a book is already marked as not available (aka the boolean is false) then the input thing for the name is hidden, how can this be done?


You could follow the basics of this tutorial -

You just have to change it up, so instead of if there’s no item in a certain field it’s if the boolean field is false.