I worked on the Go team at Google for about 10 years working on bits of everything, but primarily the standard library (net/http, etc) & its build system. In that time I wrote lots of Go, but almost primarily for Go itself. Joining a startup, I now finally get to use Go all day to build a real product (Tailscale) and it's super exciting. We use Go on the server and in 5 clients: Linux, Windows, macOS, iOS, Android.