The document outlines the development of an intelligent car wash service over multiple iterations using an agile approach. An initial proof of concept was built in under a month with a simple web interface and third-party license plate recognition. This pilot had 90 customers and provided early lessons. Subsequent versions added more features and scaled the customer base by 400%, though issues remained. The final version involved rebuilding the license plate recognition and washer controller software from scratch, solving reliability problems and enabling fast recognition and platform growth. The project took over a year of development across many iterations to create a satisfied customer and end users.