To compile .proto files: apt-get install protobuf-compiler
.
To compile chrome.proto for use with grpc-web you'll need to put protoc-gen-grpc-web from https://github.com/grpc/grpc-web into $PATH.
TODO: npx
seems to be install just with sudo apt-get install npm
? Or was it
install with npm install
run out of grpc-web repo?