Installation#

Add @sigx/vercel to your project — a build-time dev dependency, alongside the Vercel CLI for deploys.

Install the package#

pnpm add -D @sigx/vercel
pnpm add -D vercel   # or use the globally installed CLI

npm install -D @sigx/vercel
npm install -D vercel   # or use the globally installed CLI

yarn add -D @sigx/vercel
yarn add -D vercel   # or use the globally installed CLI

bun add -D @sigx/vercel
bun add -D vercel   # or use the globally installed CLI

Wire the adapter#

A separate platform config keeps the default Node build untouched:

// vite.config.vercel.ts
import { defineConfig } from 'vite';
import sigx from '@sigx/vite';
import { vercel } from '@sigx/vercel';

export default defineConfig({
    plugins: [sigx({ ssr: { entry: 'src/entry-server.tsx', adapter: vercel() } })]
});

Verify#

vite build --app -c vite.config.vercel.ts

The first build scaffolds src/entry.vercel.ts (only when absent — yours afterwards) and generates .vercel/output/ with config.json, static/ and functions/_render.func/. Link the project (vercel link) and deploy the prebuilt output with vercel deploy --prebuilt.