I am currently working on a Golang version of the tutorial, but broken out into individual repos.
I found it took a bit to get Golang setup with serverless for debugging etc… So I created a basic how-to/quick-start repo here https://github.com/jayco/serverless-golang-demo.
It has basic unit/integration testing and debugging setup for VScode via SAM and Delve. It uses the custom domain plugin to attach to a domain on AWS and a Seed config so it can be easily deployed through Seed CI.
Hopefully it could be useful to people looking at implementing a Go version.