Save a page to Urth from any browser
Safari has Urth in its share menu. For Chrome, Firefox, Arc and the rest on the Mac, there's this: a bookmark that, when clicked, sends the page you're on to Urth as a new note, with whatever you'd selected and a link back to the page.
Drag this to your bookmarks bar:
Then, on any page, select some text if you like and click it. Urth opens with the note.
Private, like the rest of Urth
The bookmarklet is a few lines that run in your own browser and hand the page's title, address and your selection to the Urth app on your Mac. Nothing is sent anywhere else: not to us, not to anyone. You can read all of it by looking at the link.