The design system that powers brain, helical, and bfurg.com. Tokens + primitives, distributed via shadcn registry.
Use npx shadcn add with the registry URL to pull tokens and primitives into any project. The same DNA runs across every surface — light or dark, essay or product.
data-modeProse, Heading, Link, CodeContainer, Stack, SectionThemeProvider with localStorage persistenceProduct-specific chrome (chatbots, comparison tables), essay-specific scaffolding (series index, archive layouts), or page-level navigation. Each app owns its own chrome.