GrapesJS is a client-side visual web page builder framework distributed as a pnpm monorepo. The core package exposes a `grapesjs.init()` entry point that creates an `Editor` backed by `EditorModel`, with pluggable modules for the component tree, iframe-based canvas, CSS rule composer, style manager with custom property types, block/asset/layer/trait managers, command registry, HTML/CSS parsers, code generators, storage adapters, internationalization, keyboard shortcuts, undo/redo, and a plugin system. The CLI package scaffolds, builds, and serves plugins. Although it contains a `DataSources` subsystem, this is an application feature for binding external records to component content, attributes, and styles, not a data-research pipeline; the repository is a software library, not research code.
Halo is a full-stack content management system (CMS) and blogging platform built on Spring Boot WebFlux (reactive) and Vue 3. It provides a Kubernetes-inspired extension model for defining custom resources (posts, pages, comments, attachments, themes, plugins) with automatic RESTful CRUD endpoints, indexing, and reconciliation controllers. The system features a plugin architecture (PF4J-based) that allows third-party extensions to contribute UI bundles, security filters, notification handlers, search engines, and theme template processors. The frontend is split into an admin console and a user center, both built with Vue 3, FormKit, TanStack Query, and a rich-text editor (Tiptap). Security includes multiple authentication methods (password, OAuth2, email code, TOTP two-factor), RBAC authorization, remember-me, device management, and sudo confirmation. The theme engine uses Thymeleaf with custom dialects and a finder pattern to expose backend data to templates. The codebase is large but well-organized, with clear separation between API interfaces and implementations, extensive use of reactive programming, and a strong emphasis on extensibility through extension points.
ApostropheCMS is a full-stack content management system built with Node.js, MongoDB, and Vue.js. It provides a modular architecture with extendable content types (pages, pieces, widgets), a rich admin UI with in-context editing, headless API support via Astro integration, and extensive internationalization and permission systems. The monorepo contains the core CMS package, CLI tools, database adapters, file storage abstraction, AI content generation helpers, import/export utilities, and many first-party modules for SEO, forms, events, and more. The codebase is large and well-tested, with a strong emphasis on security (prototype pollution guards, permission regression tests) and developer experience (scaffolding, OpenAPI generation). However, it shows signs of technical drift in some legacy packages and a complex build pipeline.
HugoBlox Kit is a modular static site framework built on Hugo, providing a block-based page builder for academic, portfolio, documentation, and marketing websites. It uses Hugo's template system with Preact for interactive components, Tailwind CSS v4 for styling, and supports various third-party services (analytics, comments, search). The architecture is a monorepo with core modules (blox, analytics, slides, integrations) and multiple starter templates. Key entry points include the block system (blox/), layouts, shortcodes, and partials. Data flows from Markdown content and YAML configuration through Hugo's build pipeline, with client-side hydration via Preact. External dependencies include Hugo Extended, Node.js, pnpm, and various CDN-hosted libraries (Reveal.js, Mermaid, KaTeX, etc.). The framework is heavily oriented toward academic and research use cases, with features like BibTeX import, publication pages, and author profiles, but also serves general-purpose sites like SaaS landing pages and documentation.
VvvebJs is a WYSIWYG web page builder that enables drag-and-drop creation of responsive websites using Bootstrap components. The system provides a visual editor with canvas, property panels, component library, and file management for constructing HTML pages. Key features include inline text editing, code viewing via CodeMirror, media handling, undo/redo functionality, and export capabilities. The architecture follows a modular pattern with core builder logic in libs/builder/builder.js, extensible via plugins and component definitions. Entry points include editor.html for initialization, save.php/save.js for persistence, and upload.php/scan.php for media management. The builder manipulates an iframe as the design canvas while maintaining component state and history for undo/redo operations.
AppFlowy-Web is a feature-rich collaborative workspace application built with React, TypeScript, and Yjs (CRDT). It provides real-time collaborative document editing via a Slate-based editor, multiple database views (grid, board, calendar, gallery, list, timeline, feed, chart), AI-powered writing assistance and chat, publishing/sharing capabilities, and workspace management. The application is designed as an open-source alternative to Notion, supporting both cloud-hosted and self-hosted deployments. The architecture is a single-page application with Yjs as the core data model for offline-first collaboration, backed by IndexedDB caching and REST/WebSocket APIs. The codebase is extensive (4000+ files) with comprehensive unit and E2E tests, but exhibits moderate technical drift due to mixed UI paradigms (MUI + Radix), complex Yjs observer lifecycle management, and some deprecated environment variable mappings.