To start up the design system documentation project in development/authoring mode, execute the following command inside the project folder:
npm run dspublisher:start
Note that the first run needs to download the Design System Publisher package and install a lot of (Maven and npm) dependencies so it might take a good while to have it fully running. Subsequent start-ups are quicker, as the dependencies are already available.
Once the project is fully started, the browser is automatically opened at
Use a web browser to access the URL to see your design system documentation page live in development mode.