heroku-buildpack-sass is a custom buildpack for Heroku that compiles Sass/SCSS files to CSS.
Unless you're deploying a static site, using no other languages, and serving with magic(!), you'll probably want to combine this with other buildpacks using heroku-buildpack-compose or heroku-buildpack-multi.
This buildpack finds all .scss and .sass files, and compiles them to files
with the extension changed to .css and any parent directories named scss or
sass changed to css. So ./scss/style.scss becomes ./css/style.css.
If you think of a better way, sethwklein tries to keep up with pull requests and issues!