Its more geared right now for someone familiar with the development process (especially those who are using some of the other dev MQTT builds). If you are confident in worse case re flashing with the stock firmware over USB I have uploaded a compiled version here
https://github.com/lawrence-jeff/OpenGarage-Firmware/tree/master/Compiled
I have noticed some weird things with the pages not updating after update either through the web or USB – so I now flash it with a blank bin first.