the link for those interested
you can try it out at
Note to Mac users
you can't use Safari - you'll see a warning stating
Web Serial API is not supported in this browser. Please use Chrome, Edge, or another Chromium-based browser
Apple has likely not adopted this because of security, privacy, and platform control concerns. Direct access to hardware interfaces such as serial ports increases the attack surface of the browser, since malicious sites could interact with connected devices. Also a risk is that direct access to serial ports allows a website to identify and track a user through their connected devices. Each device exposes hardware identifiers or behaves in a unique way, which can be used for fingerprinting. In practice, this means a site could recognize a user even if they change IP addresses, clear cookies, or browse in private mode.