A Dallas parking startup stepped away from the consumer app and into the attendant’s hand. Now, as JustPark, it is putting the booking, the payment and the parking gate back together.

Yoyo Chang is the Taiwan-born British founder and CEO of Kody, a payments and physical-commerce platform he started as a high-school cafeteria project to kill lunch queues. A self-taught teenage stock trader who ploughed his own trading profits into the company, he raised the business through a $20M Series A in 2024 and pushed its annualised processing volume toward $1 billion, all before turning 25.