How to serve FE when running locally

I got the BE running following steps up to:

And for the FE and I set in package.json:
"proxy": "http://localhost:9090/",

Is this along the right lines; or is this not the correct way to get the FE and BE talking to each other?

Apologies if I’ve missed the relevant docs for this somewhere,

Also posted here -!topic/kiali-dev/9MhoDlnjLjI

Perhaps more appropriate group to use.