vsix is Visual-Studio-only, but certainly fine for that. Found it yesterday. A little more integration would be nice (think of F12 / go to definition), but that's a different topic.
chocolatey is not very widespread or even known among most developers. (Only from looking around in my company or friends. There's not even a lot of NuGet going on here.)
zip is what I've described.
But anyway, I was just asking.