Shadcn

This is the most comprehensive shadcn/ui reference I've seen, with 58 community-maintained rules organized by actual priority impact. It covers everything from CLI setup gotchas to accessibility preservation to form patterns with React Hook Form and Zod. What makes it useful is the structure: rules are prefixed by category (setup-, arch-, ally-) and prioritized from critical to low-medium, so you know what matters when reviewing code or scaffolding new components. The accessibility section alone is worth it, calling out things like required DialogTitles and proper aria-invalid usage. If you're building anything non-trivial with shadcn/ui, especially data tables or complex forms, this beats hunting through GitHub issues.