The first thing you should do is solder 2 wires to the 3rd and 4rth pin on the power boost 1000c

Second step: the second thing you should do is solder 2 wires to the power and ground pin on the power boost

Third step: solder the ends of the wires you just soldered to the power boost to the power pins on the pi zero

Fourth step: plug in battery to boost. Plug in the converter to the glasses and pi. Plug in wifi dongle and keyboard. Then you should have a working product

The last step is for you to design your own 3d printed case for the parts