A good article that covers what Keybase is, where they came from, what they try to do, and where they're trying to go -- although you couldn't tell from the headline. As in the article body, Slack is namedropped just for effect; Keybase Teams being a decent proof-of-concept of a popular kind of application to show that the ideas behind Keybase can be used to build real products.
That being said, Keybase has been moving more and more towards building these higher-level services on top of (and app-wise, deeply integrated into) their core offering: Chat, File locker, etc; presumably other than delivering value these offerings make the company easier to position in the grand graph of services, and more palatable for raising capital or as a future acquisition target.
That being said, Keybase has been moving more and more towards building these higher-level services on top of (and app-wise, deeply integrated into) their core offering: Chat, File locker, etc; presumably other than delivering value these offerings make the company easier to position in the grand graph of services, and more palatable for raising capital or as a future acquisition target.