NunjucksNunjucks is an HTML templating engine for JavaScript based on Jinja. Pangolin.js creates static HTML from Nunjucks files.
Sass + PostCSSSass is a CSS preprocessor supporting static variables, nesting, and mixins. PostCSS runs the CSS through plugins, e.g. autoprefixer.
JavaScriptJavaScript files are bundled together with webpack and transpiled with Babel and the env preset to support a specific browser set.