1. Run make genproto for generating protobuf
2. Run make genkeypair for generation ssh keypair for JWT signing
3. Run make build-both-for-${windows or macos for now} 
4. Built binaries located in /build/${os} directory 

Usage of server:
  -address
        grpc service address
  -output
        directory where files to be saved
  -debug
        debug mode (means logging level)
        

Usage of client:
 -address
        grpc service address
 -file
        path to file you want to transfer (can't be empty)