Adham Dannaway is an Australian UI/UX designer and one of the most widely cited independent voices on Figma design-system construction. He runs adhamdannaway.com and publishes detailed Figma kits and educational material on building production-grade design systems.
His CourseFlix listing carries the Figma Design System — Figma UI Kit and Style Variables course. Material is paid and aimed at product designers building or maintaining design systems for real product teams.