How to discover TRS

https://tools.oasis-open.org/version-control/svn/oslc-core/trunk/specs/tracked-resource-set.html#discovery described discovery but does not state how an indexer finds that data. Current Jazz applications use rootservices, which is usually a static XML document at a known URI relative to the application context root. Applications that want to dynamically provide TRSs, such as ones for a project area or some other data partition, do not have a standard means of advertising them, and indexers have no means to determine which new ones might be of interest to add as a data source.