I love to see that at the end the document the plugins package is mentioned. Currently it doesn't have support for Windows (among other issues), so it's really good to hear that the work in the linker might eventually improve the situation with plugins too, and that at least it's being kept in mind. On golang, interfaces being implemented implicitly is not everyone's cup of tea, and I can understand why, but when you combine that property with plugins, you can make really powerful plugin systems that use very simple code to work.