That's what Naomi Wu really did while producing influencer type maker videos. "She knows Shenzhen like the back of her hand." Someone who bought her services describes her leading them confidently into sketchy alleys and up back stairs to unmarked doors, behind which were people making the thing they wanted.

She has a book about how to get electronics done in Shenzhen.[1] There was a previous edition published by a westerner, but Wu, a Shenzhen native, updated it. In ten years, Shenzhen changed a lot.

[1] https://www.crowdsupply.com/machinery-enchantress/the-new-es...