OneShelf is built within the Microsoft 365 ecosystem and connects to other Microsoft 365 services with Microsoft Graph.
OneShelf creates an index: all files from Sharepoint document libraries, personal OneDrive’s, Teams channels are synchronized.
OneShelf pulls properties from Sharepoint columns, which can be used as Filters.
Users log in with their company Microsoft account: Single Sign-on.
Only the presentations' text is indexed, OneShelf doesn't copy your files.