Can I run multiple React apps?

Question

System administration

I took an order for the development of an ERP system. The system itself has 4 types of users . Everyone has different dependencies, and in general the director's application needs one kind of library, the manager's another, and so on. I don't really want to make the same application for all users. And so I want to make 4 applications. In the future, they will give me a server and I will configure the application on the server.
(I will use ubuntu 16.04 as the operating system).

QUESTION
How to configure all 4 types of applications? So that they would work from the same operating system, and be available on 4 different domains. Well, or at least what to smoke on this account?
well, or just so that they are available from different URI addresses. Same domain name...

Answer 1

If, as a result, there will be 4 different js bundles, one for each application, then just make 4 starting html pages, each of which will connect its own bundle. At the level of the web server (nginx / apache) for different urls / domains, we issue the desired page.
If you do it in a React + Express bundle, then each Express application can be hung on different ports, and the web server can proxy different domains / urls to the desired Express instance.