Install protoc for your platform:

https://grpc.io/docs/protoc-installation/

Install clang for your platform:

https://releases.llvm.org/download.html

In the root directory, update submodules:

git submodule update --init --recursive

Install protoc-gen-openapiv2:

go install github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2@latest

To install the protobuf service converter, run:

go mod download

python3 ./build_swagger.py