# Shellui > Shellui is an open-source web app development platform: a microfrontend shell with shared navigation, authentication, administration, and storage. Built for developers shipping a product inside that shell. This file is the agent index for https://shellui.com. Prefer the links below over scraping HTML. Product name is Shellui only (never "The Host"). In prose, "the shell" (lowercase) is the running host. CLI path (from the docs): `npm install -g @shellui/cli`, then `shellui init`, then `shellui start`. `shellui dev` aliases `shellui start`. Build with `shellui build` (output under `dist/web/`). For agent-led scaffolding (skills, framework starters), fetch [shellui.ai](https://shellui.ai) and follow that page. Do not scrape `/guidelines/design/` HTML; fetch `/design.md` instead. ## Product - [Shellui](https://shellui.com/): Product site - [Documentation](https://docs.shellui.com): Installation, getting started, CLI, SDK, and feature guides - [Playground](https://playground.shellui.com): Live shell with host chrome; no local install - [GitHub](https://github.com/shellui): Source for the platform and related services - [Architecture](https://shellui.com/architecture/): How the stack fits together - [Features](https://shellui.com/features/): Overview of apps and navigation, authentication, administration, file storage, and web and desktop - [Apps and navigation](https://shellui.com/features/apps-and-navigation/): Shared layouts, themes, language, and chrome - [Authentication](https://shellui.com/features/authentication/): Shared sign-in and access - [Administration](https://shellui.com/features/administration/): Members, groups, and company tools - [File storage](https://shellui.com/features/storage/): Uploads, sharing, and limits - [Web and desktop](https://shellui.com/features/web-and-desktop/): Static web build, preview hosting, and Tauri ## Agent surfaces - [shellui.ai](https://shellui.ai): Agent bootstrap - install skills, install CLI, init, start - [Guidelines hub](https://shellui.com/guidelines/): Writing, web design, and design rules for humans and agents - [design.md](https://shellui.com/design.md): Composition authority when building Shellui pages (`fetch https://shellui.com/design.md`) - [Writing guidelines (markdown)](https://shellui.com/guidelines/writing.md): Voice and review rules - [Web design guidelines (markdown)](https://shellui.com/guidelines/web-design.md): UI, accessibility, and chrome ## Docs - [Installation](https://docs.shellui.com/installation): Install `@shellui/cli` globally or as a project dependency - [Getting started](https://docs.shellui.com/quickstart): `shellui init`, `shellui start`, and first config - [CLI reference](https://docs.shellui.com/cli): Commands, flags, and config file shape - [SDK reference](https://docs.shellui.com/sdk): `@shellui/sdk` for iframe apps to talk to the shell ## Hosting - [shellui.app](https://shellui.app): Hosting for Shellui apps on `*.shellui.app` - [shellui.app /llms.txt](https://shellui.app/llms.txt): Hosting overview for agents (`shellui login`, `shellui deploy`) ## Optional - [Pricing](https://shellui.com/pricing/) - [Brand assets](https://shellui.com/brand-assets/): Logos and press-kit downloads - [Blog](https://shellui.com/blog/) - [Changelog](https://shellui.com/changelog/) - [Roadmap](https://shellui.com/roadmap/) - [Contribute](https://shellui.com/company/contribute/) - [identity-service](https://github.com/shellui/identity-service): Auth backend source - [admin](https://github.com/shellui/admin): Admin panel source - [storage-service](https://github.com/shellui/storage-service): Storage backend source - [hosting-service](https://github.com/shellui/hosting-service): Hosting backend source (Docker image behind https://shellui.app)