Using swift as part of a microservices framework

I wanted to better understand how swift could be used as part of a microservices framework, in particular using gRPC, as some users have recommended that on here.
I'm a fan of GCP, so I took their microservices-demo, and modified it to swap out one of the services with a swift implementation instead.
I thought this would be useful for anyone else wanting to see what a production-like setup might look like, with swift gRPC, docker/kubernetes.
Would love any pointers or feedback!
The repo is here: