brunch-config-basic.js

exports.config = {
    files: {
        javascripts: {
            joinTo: 'app.js'
        },
        stylesheets: {
            joinTo: 'app.css'
        },
        templates: {
            joinTo: 'app.js'
        }
    }
};

brunch-config-sass.js

exports.config = {
    files: {
        javascripts: {
            joinTo: 'app.js'
        },
        stylesheets: {
            joinTo: 'app.css'
        },
        templates: {
            joinTo: 'app.js'
        }
    },
    plugins: {
        sass: {
            options: {
                includePaths: [
                    'node_modules/flexboxgrid/css/',
                    'node_modules/normalize.css/'
                ]
            }
        }
    },
    npm: {
        enabled: true
    }
};