WSDR is a web-based platform for real-time signal processing, application development, and custom workflow creation—all in a plug-and-play environment. Built on WebAssembly, WebUSB, and WebSockets, it supports even demanding workloads, including running a full open-source cellular network directly in the browser with all DSP executed on the frontend. In this session, we’ll show how WSDR simplifies building and deploying custom applications.