To use, install the app and open it.
Choose "Sign Up."
Choose to "Enter your details" (do NOT choose the red box that says 'Using library card").
Put in your email address (it doesn't have to be your CVU email address) and create a password. (This is just for the app itself. It isn't needed for the checkout process.)
The next screen asks you to "add a library." You can do it by typing in Champlain Valley Union High School or by using the Hinesburg zip code (05461). It recognizes this and brings up a box that says
Champlain Valley Union High School
Hinesburg VT / GMLC (Green Mountain Library Consortium).
Select that and it brings you into the site where you can get the books!
Once you get there, that's where you sign in by saying Champlain Valley Union High School is your library and then putting in your CVU ID number.