Adding wi-fi to your Zero has been done before but this is a really nice video, so I thought I’d feature it.
NODE has taken the innards of a wifi dongle, some thin wires and a Pi Zero. He’s then soldered the whole lot together to provide wi-fi to the Zero and then taped the innards to the Zero. I’m not sure about the idea of having the wires go over the GPIO, but it is a neat solution. Instructions including a wiring diagram are available in his video below.