See the app documentation's here.

Whenever you want to run in production mode you have to have build the app and to after run the app:

Build the renderer server

npm run hyperion:build

Build the React App

npm run web:build

Start the renderer server

npm run hyperion:start

Whenever you want to run in development mode:

Start the renderer server in development mode

npm run hyperion:dev

Start the webpack-web-server to develop the React App

npm run web:dev