npm install webpack-dev-server --save-dev npm install webpack-cli --save-dev npm install webpack --save-dev npm install svelte-material-ui --save-dev npm install svelte-loader --save-dev npm install svelte --save-dev npm install style-loader --save-dev npm install serve --save-dev npm install sass-loader --save-dev npm install node-sass --save-dev npm install mini-css-extract-plugin --save-dev npm install css-loader --save-dev npm install cross-env --save-dev npm install svelte-spa-router --save-dev