@shopackify/mango (npm): A highly modular Theme development tool, to create world class & production ready Shopify themes, using Webpack and your choice of PostCSS or SASS, while transpiling & polyfilling ECMAScript to allow for backwards compatibility and newer code. 
Keywords: Shopify|Mango|Webpack|Babel|ES6|Transpile|Build|Tools|Modular|ESLint|Stylelint|Develop|Live|Reload|Tooling|Themekit|slate