The Pattern Launcher Rocks

@PaddeK For this specific watch face your idea will not work unfortunately, since the watchface will directly start the launcher if it detects a tap, at least if I'm reading the code correctly:

https://github.com/espruino/BangleApps/blob/master/apps/lcars/lcars.app.js#L561

Bangle.on("touch", e => {
  Bangle.showLauncher();
});