I also tried the reddit python workaround and had no luck, still got the errors:
2020-06-20 03:01:58.688711-0700 Restaurant[9572:793454] [] nwsockethandlesocketevent [C1.1:2] Socket SOERROR [61: Connection refused]
2020-06-20 03:01:58.701424-0700 Restaurant[9572:793454] [] nwsockethandlesocketevent [C1.2:2] Socket SOERROR [61: Connection refused]
and in my browser, only the "http://localhost:8090/categories" url works,not the "http://localhost:8090/menu" url.
I'd also be very interested to know how to use my Mac's IP address as a baseURL workaround.