Exposing proto files in a gRPC service over a frameworkless and lightweight API

A few days ago I introduced the notion of nano service in ASP.NET Core or rather how to implement a REST API without any particular framework ( https://anthonygiretti.com/2020/06/29/nano-services-with-asp-net-core-or-how-to-build-a-light-api/). Since then, I have challenged myself regularly on the possibilities of relevant applications of this idea.