I didn't claim to be writing large scale services? I'm on the team with people who are though.

The code I write is adjacent: refactoring the tests so they run faster with less flakiness (guess what Go makes extremely annoying: mocking concrete types from dependencies! You must either wrap it in your own code (and continuously, manually, maintain that abstraction), give up, or alter the upstream) and writing internal services and tools. Tools are primarily in Go so we can share libraries.