Previous: Using Compass Extensions
If you just want to watch/compile Sass files, you can use Compass.app in Sass Mode.
First, you have to create a folder looks like this:
project_folder/ - sass/ - what_ever_name.scss - stylesheets/
Then watch this folder. Done.
Caution: If the sass folder has no .sass/.scss files, you will get a error:
Nothing to compile. If you're trying to start a new project, you have left off the directory argument.
You can not change the name of "sass/" and "stylesheets/".