If it’s working correctly, it should be as simple as accessing (internal ip) : (port) at (external ip) : (port).

There are a bunch of things that might be going wrong if it’s not working. Unfortunately, I don’t have the skills to help you diagnose the issue!

Happy to help!

Not quite middle class people, but otherwise correct:

From Wikipedia

In 1900, there were fewer than 3,000 cars on the roads of France. To increase the demand for cars and, accordingly, car tyres, car tyre manufacturers and brothers Édouard and André Michelin published a guide for French motorists, the Michelin Guide.