Your comments

Is this still on your to-do list?

I find it annoying that the Mac app doesn't behave as per the standard macOS document model. When I want Textastic to run the way it does on iOS, I'll grab my iPad.

Specifically:

  1. Add an option to hide the tab bar
  2. Make the Cmd-N shortcut open a new window instead of a new tab
  3. Documents opened from Finder open in a new window instead of any existing one.

I don't think it even needs a checkbox in the preferences, just hiding the tab bar should enable items 2 and 3 (and persist across app launches).