Tailwind CSS

@shadcn/lint is an agent-first linter for Tailwind v4 design systems. It lets teams define component and theme rules that coding agents can verify through ESLint or Oxlint, reporting violations with suggested fixes drawn from existing components, variants, and theme values. Its rules include preventing component restyling, raw colors, arbitrary values, inline styles, unknown Tailwind classes, and dynamic classes the linter cannot read; custom contracts, messages, placeholders, component-import settings, and shared configuration are supported. It can be used with custom Tailwind components and does not require shadcn/ui. The package requires Node.js 20.19 or later, with ESLint 9.30 or later or Oxlint 1.80 or later, and is licensed under MIT.

tailwind-merge is a utility for combining Tailwind CSS classes while resolving conflicts between them. The video describes it in the context of using `cn` instead of combining it with `clsx`.

Core Framework is a visual CSS framework and design-token builder for the web, WordPress, and Figma, developed by CoreBunch. It provides a visual editor for semantic colors, light and dark values, generated shades, fluid typography and spacing scales, layouts, reusable selectors, components, utility classes, and design primitives such as radii, borders, shadows, opacity, filters, and transforms. The system calculates responsive type and spacing scales from minimum and maximum values, scale ratios, and naming conventions, then generates standards-based production CSS. Projects can be previewed in the editor and their readable or minified stylesheets can be copied, exported, or downloaded, or saved as portable .core files. The same open-source codebase supports a standalone web app, WordPress, Figma, Gutenberg, Bricks, and Oxygen integrations. The editor is local-first, and the web app, plugin, integrations, and builder add-ons are available under the MIT license without paid feature gates.

Moumen Lab is a React component registry for interface components such as menus, OTP inputs, upload staging, command palettes, and draggable reorderable lists. Components are distributed in the shadcn registry format and installed as source code with the `moumenlab` CLI or shadcn CLI, so no runtime package is required. The components use Tailwind CSS with shared `lab-theme` tokens and motion-based animations that are interruptible, layout-aware, and reduced-motion aware. The repository includes live showcases, component blueprints, source files, registry metadata, and a monorepo-based CLI; it targets React 19, Tailwind CSS v4, Node.js 18+ for installation, and is licensed under MIT.