1. Install webpack dependencies + Local Dependencies

npm i --save-dev webpack webpack-cli @babel/core @babel/preset-env babel-loader
npm install --save ./deps/lexical
npm install --save ./deps/@lexical/plain-text
npm install onchange

2. Build minified

npm run build

or

npm run watch

3. Serve static/index.html

yarn global add serve
serve

4. Navigate to http://localhost:3000/static/