How do you deploy an incompatible change to an existing package? This is the fundamental challenge, the fundamental decision, in any package management system. The answer decides the complexity of the resulting system It decides how easy or difficult package management will be to use. (It also decides how easy or difficult package management will be to implement, but the user experience is more im

I've been trying on and off to find a nice way to deal with setting options in a Go package I am writing. Options on a type, that is. The package is intricate and there will probably end up being dozens of options. There are many ways to do this kind of thing, but I wanted one that felt nice to use, didn't require too much API (or at least not too much for the user to absorb), and could grow as ne