The edge within this context means running a server close, in terms of Internet latency, to users. For example, if a user if sending a request from Germany, then the response should come from a server running in say Frankfurt, not the US. There are now many providers that allow devels to deploy services at many different locations at once, and to ensure that client requests are routed to the closest available location. An understandable source of confusion is that wasm comes from the browser world, but it's also possible to run it as standalone (no browser) server code.
Also not to be confused with the term edge within the context of IoT/embedded, where the edge is devices running at the very edge of the Internet, e.g., factory floors, trucks, etc.
Also not to be confused with the term edge within the context of IoT/embedded, where the edge is devices running at the very edge of the Internet, e.g., factory floors, trucks, etc.