Thank you again @Gordon, I'm making progress now. I've still got loads of bugs to fix, but it's appearing in the menu now. As well as the syntax errors, another problem was that I still had an out-of-date application settings JSON file stored on the watch that I had manually uploaded when testing :)
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.
Thank you again @Gordon, I'm making progress now. I've still got loads of bugs to fix, but it's appearing in the menu now. As well as the syntax errors, another problem was that I still had an out-of-date application settings JSON file stored on the watch that I had manually uploaded when testing :)