Vue.js 3 core framework (v3.5.43) — a TypeScript library for building user interfaces, organized as a pnpm monorepo. The codebase is split into focused packages: compiler-* (template → render function compilation), runtime-* (component model, virtual DOM patching, DOM platform bindings), reactivity (dependency-tracked state), server-renderer (SSR), and shared (internal utilities). The packages/vue directory aggregates the public API surface, while vue-compat provides Vue 2 compatibility mode.
Reagent is a ClojureScript library that provides a minimal, efficient interface to React, enabling developers to define UI components using Hiccup-like vectors and manage state with reactive atoms. The library's architecture centers around three core concepts: reactive atoms (ratoms) for state, a Hiccup-to-React element compiler, and lifecycle macros like `with-let` and `defc`. Under the hood, Reagent implements its own reactive state management system (RAtom, RCursor, Reaction) that triggers automatic re-rendering of components when dereferenced state changes. The codebase demonstrates deep integration with React internals, including support for hooks, contexts, fragments, portals, error boundaries, server-side rendering, and concurrent mode. It is fully compatible with both React 18 and 19, and provides a seamless interop path with existing React libraries via `adapt-react-class` and `:>` syntax. The test suite is comprehensive, covering functional components, lifecycle behavior, reactive updates, and performance benchmarks. While primarily a UI library, the reactive state management components are designed with sufficient abstraction to be studied as a standalone pattern for reactive programming in ClojureScript.
go-app is a Go framework for building progressive web applications entirely in Go via WebAssembly. The core package pkg/app implements a declarative component model (Composer/Compo) with lifecycle hooks, client-side routing, state management with observers and persistence, server-side pre-rendering, and a full PWA HTTP handler that serves the app shell, service worker, manifest, and static resources. The docs/ directory is itself a production go-app PWA that dogfoods the framework; docs/src contains the documentation site source code, and docs/web/documents contains the markdown content rendered at runtime by the wasm binary. Architecturally, the repository is a layered Go library rather than a monolith or microservice. pkg/app contains the runtime engine (engine.go, node.go, state.go, http.go) and uses build tags to separate server-side resource/HTTP handling from client-side wasm UI execution. pkg/cli is a struct-tag-driven CLI and environment configuration loader, pkg/cache provides reusable LRU and expiring cache implementations, pkg/errors adds typed and tagged error wrapping, and pkg/logs and pkg/analytics provide optional support utilities. Code generation in pkg/app/gen/html.go produces the strongly typed HTML element API and its generated tests. The primary data flow begins with Go component state and user events, which are dispatched through the engine and Context API to update the DOM via the node manager. State mutations can be persisted to localStorage, encrypted, and broadcast across browser tabs. On the server side, the Handler serves pre-rendered HTML, resolves static resources (local dirs, remote buckets, GitHub Pages), and caches proxied resources. External dependencies include Go modules for webpush, markdown parsing, UUID, and testing, plus browser APIs and Go's wasm_exec.js glue. There are no data pipelines, notebooks, or research artifacts; this is a pure application/framework repository.
Bilibili-Evolved is a powerful userscript (Tampermonkey/Greasemonkey) that enhances the Bilibili video platform with a modular component and plugin system. It injects into Bilibili pages and provides a wide range of features including video player enhancements (speed control, screenshot, remember progress), danmaku management (merging, downloading, conversion), UI customization (dark mode, custom navbar, home page redesign), feed filtering, live streaming tools, and video downloading with multiple output formats. The architecture is based on a core framework in `src/` that handles settings, DOM observation, style injection, toast notifications, and lifecycle management, while individual features are defined as components in `registry/lib/components/` using a metadata-driven pattern (`defineComponentMetadata`). Features can be installed, updated, and configured through a built-in settings panel. The project relies heavily on Bilibili's internal APIs and DOM structure, making it tightly coupled to the platform but also highly functional for power users. It uses Vue 2 for UI, TypeScript for type safety, and SCSS for styling, with a custom build pipeline using Webpack and pnpm.
San is a Baidu-developed, production-grade frontend component framework that enables building reactive UIs with a Vue/React-like model, but using custom template syntax and a standalone runtime. It provides a template parser (producing an ANode AST), a reactive data system (Data class, Proxy-based this.d), directives (s-if, s-for, s-bind, s-show, s-html, s-ref, s-transition), slots (named, scoped, dynamic), computed properties, filters, lifecycle hooks, two-way binding, and server-side rendering hydration. The library is monolithic but modularly organized, targeting browsers from IE8 upward with conditional compilation. It is actively maintained with frequent releases and extensive test coverage, but carries legacy complexity and a self-contained build toolchain (AMD module loading, custom feature blocks). The ecosystem includes companion libraries (san-router, san-store, san-cli) and TypeScript typings.
tui-realm is a Rust library/framework for building terminal user interfaces (TUIs) using a component-based, event-driven architecture. It is not a standalone application but a reusable framework that wraps ratatui (formerly tui-rs) and provides an Application loop, Component/AppComponent traits, a Model/Update/View pattern, and a subscription system for routing events between components. The monorepo is organized as a Cargo workspace containing the core `tuirealm` crate, a `tuirealm_derive` procedural macro crate, a standard library of reusable components (`tui-realm-stdlib`: Input, Label, List, Table, etc.), and optional integration crates `tui-realm-textarea` and `tui-realm-treeview`. The framework is designed to reduce boilerplate by centralizing focus management, event routing, and state handling in the Application/View layer, while allowing developers to define custom components and event sources via Ports and Subscriptions.
Litefin is a high-performance, native Jellyfin media client designed specifically for Samsung Tizen and LG webOS smart TVs. It is built as a single-page web application using vanilla JavaScript with a custom component framework, no external UI libraries. The architecture is event-driven, centered around a global EventBus, StateManager, and Router. The application provides full media browsing, playback with advanced subtitle rendering (ASS/SSA via libass-wasm), live TV with EPG, SyncPlay group synchronization, a plugin system, and integration with Jellyseerr for media requests. It is optimized for TV remote control navigation with a sophisticated FocusManager and spatial navigation engine. The system communicates with a Jellyfin server via REST API and WebSocket for real-time events. It also integrates with TMDB (via Jellyseerr) for metadata and trailers, and uses a background service (Luna on WebOS, HTTP proxy on Tizen) for device discovery, Wake-on-LAN, and Smart Hub preview. The codebase is organized into core modules (App, Router, EventBus, StateManager), UI components (pages, modals, grids), a player subsystem with OSD menus, and platform adapters for Tizen and WebOS. It supports multiple build variants (Modern, Normal, Legacy, Ultra-Legacy) to accommodate different Chromium versions on TV firmware. Key entry points include src/index.js (bootstrap), src/core/App.js (orchestration), and src/core/Router.js (navigation). Data flows primarily through the ApiClient for Jellyfin endpoints and the WebSocketHandler for server push events. The plugin system allows third-party extensions like skip-intro and mdblist-ratings. The application is heavily optimized for TV hardware, using GPU-accelerated CSS transforms, lazy loading, and memory-efficient virtual scrolling.