The **node‑raspberrypi‑usbboot** library automates the USB‑boot process for Raspberry Pi Compute Modules and Pi Zero boards, turning them into mass‑storage devices by flashing the required boot firmware from a host computer. It provides an event‑driven API (`attach`, `detach`, `progress`, `error`) for Node.js applications (run as root on Linux) to monitor and control the flashing workflow, making it useful for developers and manufacturers who need to mass‑program Pi devices.