I'm intrigued by this project since we're looking for some solution to verifying identity for @JuliaLang's package manager. However, even though there is a "what is it?" section on the keys.pub website, I can't seem to find the answer to that question anywhere. There is a list of features, but no actual statement of what it is. Is it a server? Is it a service? Is it a client? How does it work? There's also a section for that but I find myself similarly unenlightened. That section is another list of features. I know these answers are probably so obvious to people who work on the project that it doesn't even occur to you to explain it, it would be great for people like me who come here and have no clue.