How Shake Shack rewired its tech stack: Project Catalyst, Qu, and the road to 1,500 Shacks

Project Catalyst is Shake Shack's coordinated re-platform — Qu POS/KDS, the chain's first-ever loyalty layer, and AI analytics, all wired to a 1,500-unit target. It is McDonald's playbook at one one-hundredth the scale, and it's the most credible mid-size re-platform case study of the year.