Frasco is a Jekyll starter project that includes setup for Gulp, Sass, Autoprefixer, Bourbon, Neat, Bitters, Webpack, Imagemin, and Browsersync. It provides a quick way to get started with a Jekyll site that has these tools preconfigured. To use Frasco, clone its GitHub repository, install dependencies with npm, and run npm start. Documentation for Frasco can be found on its website.