Disabling Hard Reset Puck.js

I'm having trouble getting this to work. For eaxample here is what I'm trying to write to .boot0 and have it execute on device start-up, but it's not working for me:

require("Storage").write(".boot0", `


//function onInit() {
var kb = require("ble_hid_keyboard");
NRF.setServices(undefined, { hid : kb.report });

function btnPressed() {
  // Send 'm'
  kb.tap(kb.KEY.M, 0);
  digitalWrite(LED3, true);
  setTimeout("digitalWrite(LED3, 0);", 100);
}

// trigger btnPressed whenever the button is pressed
setWatch(btnPressed, BTN, {edge:"rising",repeat:true,debounce:50});
//}


`);

So i have nothing in save(), so do not enter the save() command into the terminal, I just send the above code onto the puck via the IDE, then disconnect from the IDE and restart the puck by cycling the power.

I have tried both including the onInit and leaving it commented out as above.

Do I have something wrong, or is it something to do with the ble_hid_keyboard service not working from boot0?