By default, you can open Rewind by hitting Cmd+Shift+Space. This is also the default for other apps, like 1Password. Both of these defaults are configurable.
How do I change the keyboard shortcut for Rewind?
Click the Rewind logo in the menu in the upper-right corner and go to "Settings" and then "Shortcuts" > change "Search Rewind"
How do I change the keyboard shortcut for 1Password?
Click the 1Password logo in the menu in the upper-right corner and go to "Preferences" and change it by clicking the box to the right of "Show Quick Access":
