sharepoint addin – Vendor-hosted add-on using non-MS + technology Question about application URLs

I'm trying to create an add-on hosted by a SharePoint provider, but I'd like to build it with NodeJS. I can not find any example or tutorial explaining how, but I have read many articles saying that it is possible to do it with others not. Technologies -MS.

I know ASP.NET MVC, but I am better with NodeJS and would like to use React which seemed difficult to configure with ASP.NET MVC. So, no idea on how to start with PHA with NodeJS?

In addition, will the application have a URL like https: //someapp.local or query strings? As my requirement is to have an internal website connected to SharePoint, but will have to have a clean URL, and have seen vendor-hosted applications with query string parameters.

Thank you.