Creating Prayer Space in School District Library

We are a small, urban, very diverse school district with a large English Language Learner (ELL) population and a high poverty rate. Our school library spaces are small and do not have adjoining meeting rooms. There is no dedicated prayer/meditation space in our schools either. In the past, during Ramadan and other Muslim holidays, school administration has directed Muslim students to use the libraries as prayer spaces. Currently, Muslim students have been directed to pray daily concerning the issues taking place in Israel/Gaza, so they have been coming in daily to pray. This becomes an issue as we have classes/groups scheduled in the libraries throughout the day, so space and privacy become an issue. The libraries are also not always staffed, as librarians travel between buildings and support staff is often pulled to cover for classroom teachers.

What is the legality of using a school library for a prayer place for students?
Should an alternative location be put in place in lieu of the school library?

We want to be respectful of students' religious view and rights, but also want and need to keep the school libraries accessible to all.

I would appreciate any advice you could provide on this topic.
Thank you.