$ show quasarframework/quasar
The Quasar Framework monorepo is a comprehensive Vue 3 UI component library and cross-platform application development toolkit. It provides a rich set of reusable components (QBtn, QTable, QDialog, QLayout, etc.), composables (useTimeout, useDark, useForm, etc.), directives (v-ripple, v-touch-pan, etc.), and plugins (Notify, Dialog, Loading, Dark mode, etc.) that enable building responsive web, mobile, and desktop applications from a single codebase. The framework is distributed as multiple packages: the core UI library (`quasar`), a Vite-based CLI (`@quasar/app-vite`) that supports building for SPA, SSR, SSG, PWA, browser extensions (BEX), Cordova, Capacitor, and Electron targets, a project scaffolder (`create-quasar`), a global CLI (`@quasar/cli`), a Vite plugin for auto-imports and Sass variable injection, an icon generation tool (`icongenie`), and an MCP server for AI agent integration. The architecture follows a monorepo pattern managed with pnpm workspaces. The core UI library is built with Vue 3 and exposes a plugin-based system where components, composables, and directives are registered via a central `install-quasar` entry point. The CLI (`app-vite`) uses Vite and Rolldown as build backends, with mode-specific builders that generate optimized output for each target platform. The scaffolding system (`create-quasar`) generates project templates with optional TypeScript, Pinia state management, i18n, and linting configurations. The documentation site (`docs/`) is itself a Quasar SSR application that dogfoods the framework and includes a custom markdown build pipeline with API documentation extraction from JSON descriptors. Key entry points include `ui/src/vue-plugin.js` (framework installation), `app-vite/bin/quasar.js` (CLI dispatcher), `create-quasar/bin/create-quasar.js` (project creation), and `mcp/src/server.js` (AI agent server). External dependencies include Vue 3, Vite, Rolldown, Vitest, Playwright, and various icon libraries. The codebase demonstrates strong engineering practices with extensive unit, integration, and SSR hydration tests, a well-defined composable lifecycle pattern, and a modular build system that abstracts platform-specific concerns behind consistent interfaces.
The LLM identified 6 files worth highlighting for reuse:
A lightweight, zero-dependency event bus implementation that supports subscribe, unsubscribe, and emit operations. It is fully isolated (no internal imports) and can be extracted into any JavaScript project for decoupled communication between components. The implementation is concise and demonstrates clean API design with support for multiple handlers per event.
A Vue composable that provides timeout registration and cancellation with automatic cleanup on component unmount. It exposes `registerTimeout`, `removeTimeout`, and `isTimeoutPending` functions, supporting both numeric and string delay values. The pattern of tying resource cleanup to Vue's lifecycle is reusable for any composable that needs managed timers or intervals.
A stack-based escape key handler that allows multiple components (dialogs, menus, popups) to register and unregister escape key callbacks in LIFO order. It is self-contained with no external dependencies and can be reused in any application that needs layered escape key handling, such as modal dialogs or dropdown menus.
A Sass variable dependency graph resolver that precomputes which variables depend on which, enabling selective injection of only the required variables into the build. It uses a directed graph to track variable references and can compute transitive closures. This pattern is reusable for any CSS preprocessor that needs to minimize injected variable scope.
A generic caching proxy factory that wraps any object with TTL-based caching. It supports configurable expiration and automatic cache invalidation. The implementation is isolated and can be extracted to add caching to any service or data source with minimal changes.
A workspace-aware package locator for MCP servers that walks the filesystem to find installed Quasar packages and their documentation directories. It handles monorepo structures, symlinks, and multiple package managers. The pattern of resolving package locations by traversing `node_modules` and checking for specific file markers is reusable for any tool that needs to discover installed packages and their assets.