This module - is a sample implementation of web server for local local development of UI5 fiori components. You can find more details about express middleware here: https://github.com/ThePlenkov/express-sapui5
As illustration how it works I didn't create any apps here but just reused existing demo apps as git submodules.
One of the key features of this module - is loading all UI5 resources from CDN. This helps to improve significantly page reloading time. All ui5 resources will be cached by the browser except local ones.
This project uses git submodules. Please read how to clone properly the project with submodules here: https://git-scm.com/book/en/v2/Git-Tools-Submodules
As alternative way I recommend you to use Gitkraken (https://www.gitkraken.com/), the best git client which clones properly the whole project with submodules
Finally you just need to run npm install and then node server.
After this you can navigate to http://localhost:3000/
The following example supports a corporate proxy settings. You can define HTTP_PROXY variable in the .env file with your proxy address.