it is not clear how to collect these things from the source code?
I can’t connect the protobuff to it.
How to create all the necessary files from a vanilla protobuff?
I wanted to redo it under std ++ 17
detailed manual is possible, how did you get the necessary files from protobuff?

Is it possible to generate protobuff files only for the desired programming language?

Instructions for building kRPC from source can be found here:
https://krpc.github.io/krpc/compiling.html