The eRS prototype kit is an extension of the NHSUK prototype kit.It has been designed to work in tandem with it. The eRS kit contains styles, components and patterns that are:
not yet in the NHSUK Design System unique to eRS Therefore you should reference the NHSUK Design System first. And only use this if you can’t find what you need.
Install the long-term support (LTS) version of Node.js, which includes NPM.
Clone the repo: git clone https://github.com/nhsuk/nhsuk-prototype-kit nhsuk-prototype-kit and whilst in the project directory cd nhsuk-prototype-kit, install the required npm packages with: npm install
Run the project in development mode npm run watch and visit http://localhost:3000.