Supported Frameworks on Varity

Varity Team Core Contributors Updated June 2026

Varity automatically detects your framework when you run varitykit app deploy. You do not need to specify your framework manually.

Public and Private Docker Images

If your app is already packaged as a Docker image, framework detection does not apply. Public and private runnable Docker/OCI HTTP service images are supported:

varitykit app deploy --image ghcr.io/acme/my-api:1.4.2 --port 8080

Private registries are supported from the CLI, MCP, and Developer Portal. See Deploy a Docker Image for all three deploy paths.

Supported Frameworks

The following frameworks work today. Varity detects them from your project files and configures hosting automatically.

JavaScript and TypeScript

Next.js

Full-stack React framework. Static exports and server-rendered apps both work.

pipx install varitykit
varitykit app deploy

React

Client-side React apps built with Vite or Create React App.

pipx install varitykit
varitykit app deploy

Vue

Vue 3 single-page applications.

pipx install varitykit
varitykit app deploy

Astro

Astro apps, including static documentation or content sites.

pipx install varitykit
varitykit app deploy

Qwik

Qwik and QwikCity projects.

pipx install varitykit
varitykit app deploy

Vite SPA

Vite projects are auto-detected and deployed as static apps.

pipx install varitykit
varitykit app deploy

Express

Node.js HTTP server with Express.

pipx install varitykit
varitykit app deploy

Fastify

High-performance Node.js API server.

pipx install varitykit
varitykit app deploy

Nest.js

Opinionated Node.js framework for scalable server-side apps.

pipx install varitykit
varitykit app deploy

Koa

Lightweight Node.js middleware framework.

pipx install varitykit
varitykit app deploy

Hono

Ultra-fast edge-friendly web framework for Node.js.

pipx install varitykit
varitykit app deploy

Python

FastAPI

Modern async Python API framework.

pipx install varitykit
varitykit app deploy

Django

Full-featured Python web framework.

pipx install varitykit
varitykit app deploy

Flask

Lightweight Python web framework.

pipx install varitykit
varitykit app deploy

Go

Go modules

Go projects with a go.mod file are supported.

pipx install varitykit
varitykit app deploy

Static

Plain HTML

Static sites with an index.html file are supported.

pipx install varitykit
varitykit app deploy

Not Yet Supported

The following languages and frameworks are not auto-detected in the current beta. Deploying them from a repository will fail with a clear error message that includes a link to request support.

Language / Framework	Repo auto-detection	Workaround
Rust	Not supported	Deploy as a Docker image
Ruby / Rails	Not supported	Deploy as a Docker image
Elixir / Phoenix	Not supported	Deploy as a Docker image
Java / Spring	Not supported	Deploy as a Docker image
Deno	Not supported	Deploy as a Docker image
PHP / Laravel	Not supported	Deploy as a Docker image
C# / .NET	Not supported	Deploy as a Docker image

Varity also does not yet offer cron jobs, multi-region deployments, an edge runtime, or preview deploys.

If your framework is in this list, varitykit app deploy will return an error like:

ProjectDetectionError: Found Cargo.toml - Rust deployments are not yet supported.
Varity currently supports: Next.js, Astro, React, Vue, Qwik, Vite SPA, Node.js (Express/Fastify/NestJS/Koa/Hono), Python (FastAPI/Django/Flask), Go modules, and plain HTML.
Request Rust support at https://github.com/varity-labs

No deployment is started and no charges are incurred.

How Framework Detection Works

When you run varitykit app deploy, Varity scans your project directory for these signals:

Signal	Detected As
`package.json` with `next` dependency	Next.js
`package.json` with `astro` dependency	Astro
`package.json` with `react` (no Next.js)	React
`package.json` with `vue`	Vue
`package.json` with `@builder.io/qwik` or `@builder.io/qwik-city`	Qwik
`package.json` with `vite`	Vite SPA
`package.json` with `express`	Express
`package.json` with `fastify`	Fastify
`package.json` with `@nestjs/core`	Nest.js
`package.json` with `koa`	Koa
`package.json` with `hono`	Hono
`requirements.txt` or `pyproject.toml`	Python project
`go.mod`	Go modules
`index.html` with no app framework	Plain HTML
`package.json` with `scripts.start` and no known framework	Node.js

Detection happens in under a second and requires no configuration from you.

Static vs. Dynamic Hosting

Varity also decides how to host your app based on what it detects:

App Type	Hosting Mode
React or Vue SPA (no server)	Static hosting
Next.js with `output: 'export'` in config	Static hosting
Next.js with server features	Dynamic hosting
Express, Fastify, Koa, Hono, Nest.js	Dynamic hosting
FastAPI, Django, Flask	Dynamic hosting
Go modules	Dynamic hosting
Plain HTML	Static hosting

You can override the default with a flag:

varitykit app deploy --hosting static
varitykit app deploy --hosting dynamic