A chromium based browser, e.g. Brave browser, on your Android device should work as well. Make sure to disconnect the watch from the Gadgetbridge UI so it's available to the browser.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
i have to connect watch to pc ?(pc has no bluetooth )