Using Geta Epi Categories for Unified Search (Find 12.7.1.0)

We are using the Geta Epi Categories in out solution https://github.com/Geta/EpiCategories. We are using version 1.2.1.

Is there a way to use the Geta Epi Categories in the unified search method. The CMS users will be assigning categories to content with the Geta Categories property type (IList<ContentReference>). The Unified Search Search Categories property is of the IEnumerable<string> type so was wondering if this is possible and a nudge in the right direction to do this

Thanks in advance!