Installation

New project

npx fujin@latest create my-app --template next

Two templates are available:

Template	Use it for
`next`	Next.js 16 App Router: server components, server actions, `proxy.ts`.
`react`	Vite + React 19 SPA with TanStack Query.

Both come with Tailwind v4, the Fujin theme, the MCP config and an AGENTS.md.

Fujin is a shadcn registry, so any project with a components.json can use it.

npx fujin@latest init

This runs shadcn init if needed, adds the @fujin registry to components.json, and installs the theme tokens and the cn helper.

npx fujin@latest add button field

Add the registry to components.json yourself:

components.json

{
  "registries": {
    "@fujin": "https://package.hellofizzbuzz.in/r/{name}.json"
  }
}

Then use the shadcn CLI directly:

npx shadcn@latest add @fujin/theme @fujin/button