The one thing that stood out to me is the rather extensive nesting of if-else. I know this is go code, but there's multiple places that go five branches deep,

The one thing that stood out to me is the rather extensive nesting of if-else. I know this is go code, but there's multiple places that go five branches deep, at least. It works but it's a style that takes a lot of effort to grow what's happening IMHO.