The article details the journey of a designer joining Statsig, an early-stage startup, to establish a cohesive design system. Initially relying on Google's Material Design Component Library, the team prioritized product development over design consistency. The designer opted to create a new design system after identifying recurring patterns and inconsistencies, leveraging experience gained at Facebook. Despite the risks associated with early-stage startups, the decision was driven by the potential for improved UI/UX consistency and efficient design-engineering collaboration. The newly implemented design system, facilitated by tools like Figma, has enhanced product development speed and effectiveness, fostering a culture that encourages adaptability and innovation. Statsig, founded in 2021 with a mission to help teams utilize data for better products, benefits from a team of ex-Facebook employees replicating successful internal tools to empower product teams. The article also touches on experimentation insights from industry experts and the evolution of A/B testing practices.