Unfortunately yes... I'm using some of the latest SwiftUI API's to build the UI that I haven't back-ported for Catalina just yet. Of course my work laptop is a

Unfortunately yes... I'm using some of the latest SwiftUI API's to build the UI that I haven't back-ported for Catalina just yet. Of course my work laptop is also locked on Catalina, so I kind of played myself there as well! I'll definitely consider adding that backwards compatibility in the future if possible.