I mean it uses an experimental web standard, WebSerial. https://developer.mozilla.org/en-US/docs/Web/API/Web_Serial_API https://developer.mozilla.org/en-US/docs

I mean it uses an experimental web standard, WebSerial. https://developer.mozilla.org/en-US/docs/Web/API/Web_Serial_API https://developer.mozilla.org/en-US/docs/Web/API/Web_Serial_... Chrome just happens to be the only browser that supports it right now. It's not like it's using proprietary protocols that will never exist outside of Chrome.