Is there a way to define a keyboard shortcut that would open a whole folder with Sublime Text?
I can (obviously) easily open a file, I managed to define such a shortcut for opening a Terminal window at the folder location through keyboard preferences, but I don't know how to do that for 3rd party apps.
Open System Preferences
Select Keyboard, then the Shortcuts tab
In the left pane, click on Services
In the right pane, scroll to Files and Folders
Select Open in Sublime Text (or Add to Sublime Text) and click add shortcut
Select a shortcut.