Is SWR so well-known that no definition is needed at the beginning of the article? I have no idea what it stands for or whether it's an open-source library or s

Is SWR so well-known that no definition is needed at the beginning of the article? I have no idea what it stands for or whether it's an open-source library or some vercel-specific optimization. EDIT: Nevermind, the entire subdomain is about SWR, you can just go to the homepage.