Frameworks

Frameworks

Status depends on the framework. Check the release notes of your version.

Item	Status
Editing HTML, CSS, JS, JSX, TS and TSX as source in Code Studio	Stable
Live view of project-relative files and relative ES modules in a web page	Pre-release (12.2 line). ES module cycles are not supported.
New project templates: React, Vue, Svelte, Solid (TypeScript or JavaScript) with managed install and preview	Pre-release
Next.js, Astro, Nuxt, SvelteKit	In development
Tailwind and Bootstrap	Editable as source. No dedicated compiler or visual support is claimed.

Framework projects

Project > New project creates a project from an offline template with pinned dependency versions. Framework projects open in Code Studio with preview controls, not in the HTML visual editor.

• Run preview starts a development server managed by Somnia.
• Open preview shows it in a separate window with no editor access. Closing that window stops the server.
• Alt-click an element in the preview to jump to its source.

The first run asks to download a Node runtime into Somnia's private app data. It is pinned and checked by SHA-256. You can remove it later. Code editing works without it. Install runs with scripts disabled. Project package.json scripts do not choose what runs.

Limits: two project processes in total, one per project. Install times out after 10 minutes, build after 5.

More: React projects, Vue, Svelte and Solid, Framework runner, Live preview, Live view navigation.

Components

The Components panel stores reusable HTML blocks and variants per app profile. They are not framework packages. Thumbnails render in a restricted preview, so an unstyled thumbnail does not mean your page is broken. See Component system.