[jdp]

I wouldn't use make for file watching and live reloading. I would express the Sass and CSS dependencies in a Makefile, and then describe the dev server, file watching[1], and live reloading[2] processes in a Procfile, using something like foreman[0].

[0]: http://ddollar.github.io/foreman/ [1]: http://entrproject.org/ [2]: https://www.npmjs.org/package/livereload