Since some time I switched from Sublime Text, which is an awesome editor, to Atom. The reason for this is that Atom is Open Source and I do not have to pay money for it ;) After I combed through the packages I found less-autocompile which leads me to have a closer look at LESS, and at least at SASS too.
This was the start for me to develop Atom packages, I want to introduce here! For more information about the particular package, have a look at the corresponding readme and try it out :)
Because there was no SASS-pendant to less-autocompile, sass-autocompile (go to Github repository) was my first Atom package. It is based on the idea of less-autocompile, using a first line comment for compilation and its parameters, but I extended it more and more. Now there are many options developers can configure in order to compile their SASS files, beside automatic compilation on save. Have a look at the README where everything is described in detail.