OpenAthens and LeanLibrary (https://www.leanlibrary.com) have worked together to enable their browser extension to use OpenAthens redirector links. If your library uses LeanLibrary you can enable this as follows:
Your patrons do not need to make any changes themselves, but you will probably want to tell them about the change in advance so that they aren't surprised by seeing a login (in general they should only see it once per session).
EntityIDs look like a web address, although they generally aren't. E.g. https://idp.yourdomain.net/openathens.
Scopes look like a domain name. E.g. yourdomain.net.
There are three simple places you can look them up:
In all cases: if your scope has any numbers at the beginning you should omit them.