This is a C# API WeatherService - server(with this static HTML page at the root) hosted within a Container App (to enable HTTP2 gRPC calls)
Its purpose is to serve Weather Data via a gRPC endpoint
An HTTP GET copy of the gRPC endpoint can be access at: /weather?latitude=53.41&longitude=-2.15 (To see the Open Meteo weather lookup works and to see what he expected data looks like)