For @albertjmulder and anyone else interested... I have started a project thread where I will post the Unifi Connect related drivers and such going forward (they are not live yet).
Progress is being made and I have even been able to do some VERY basic control of my Connect Cast device (Display On & Display Off)... but their method for dealing with commands is very different from the existing Network or Protect methods and is going to require some more work before I can post the initial versions.