I use notebook URLs in my task manager so that I can easily get to a notebook on either my Mac or iPad. On the iPad this works great, but on the Mac it only works if MarginNote is already running. If I click on the URL and MarginNote is not already running, then MarginNote will run and open the last document I was working on, but not the one notebook associated to the URL. If I then click on the link again, MarginNote will open a new window to the notebook I wanted.
Here is one of the notebook URLs I tested with.
marginnote3app://notebook/6E2A8BEB-5FAD-4A77-B972-A3F8B874BB61
I could just put MarginNote in my startup items as a workaround, but I really don’t use the Mac version daily to justify running it all the time.