Non-Patient File Sharing (NPFS) defines how to enable sharing of non-patient files such as clinical workflow definitions, domain policies, and stylesheets. Those files can be created and consumed by many different systems involved in a wide variety of data sharing workflows.
See MHD, that has defined a profile of Bundle for the purpose of ITI-65. https://github.com/IHE/ITI.MHD/blob/master/input/fsh/provideBundle.fsh
ITI-87 should have similar profiling. This would then be referenced in place of the text on 3.87.4.1.2 that describes the Bundle.