I needed to run a web-server to listen out to HTTP requests from an ESP32 running microblocks (a Scratch type programming environment for microcontrollers) and I found that the microblocks HTTP request couldn't cope with the standard Node-RED 1880 port number.
Looked into a few other solutions including running a Python web-server from an exec node and then tried using @TotallyInformation alternate installer and created a running instance listening on port 80 and voila