FCPX Workflow Extension?

I’ve written some utilities in python that help video editing tasks in Final Cut Pro X through the FCPXML import/export functions.

I’m interested in learning how to bring that functionality to a native Swift app, but documentation and resources are mostly focused on the bigger market in iOS.

I’ve installed the MacOS extensions SDK and read documentation here, but I’m haven’t been able to get a project set up to the point where I can start to try to read information from FCPX.

Does anyone know of examples that can help me get started?