FlyWeb is a new experimental Web API that allows web pages to host local web servers for exposing content and services to nearby browsers. It also adds the ability to discover and connect to nearby local web servers to the web browser itself. This might be a bit hard to grasp now, but imagine this in combination with a decentralized service picking the nearest edge server via FlyWeb. You wouldn’t need any complex external CDN solutions that choose the “nearest” edge server via geolocation resolution or similar unreliable technologies anymore. Another use case could be an “off-grid on-the-fly network” with devices that use FlyWeb together with Bluetooth and WiFi chips to find other devices in the vicinity and hereby introduce a whole new area of network reliability. As FlyWeb is a technology experimentally developed by Mozilla, you need to have Firefox Nightly installed to test this out.