It's a web interface, but it is served from the local machine. The default is http://localhost:4213/
See the note just above this link on data locations and the optional and explicit opt-in to motherduck:
See the note just above this link on data locations and the optional and explicit opt-in to motherduck:
Maybe the closed source UI is downloaded upon first execution for installation and then cached locally?
Or is this a web app that loads from the remote URL each time?