Ecosystem includes tooling that helps interact with xo/xo in various ways.
protoc-gen-xo is a xo types generator, generating an sql schema from protobuf definitions. It is designed to be used with gunk, but can work separately, outside of gunk.
Use the following command to install protoc-gen-xo:
$ go install github.com/xo/ecosystem/cmd/protoc-gen-xo@latest