@seamstack/astro

Astro frontend adapter for SeamStack — runs Astro's dev server and SSR build through the seam pipeline.

pnpm add @seamstack/astro astro

Usage

Wire the adapter in seam.config.ts:

import { defineWeave } from '@seamstack/cli'
import astro from '@seamstack/astro/adapter'
import hono from '@seamstack/hono/adapter'

export default defineWeave({
  fabric: [astro({ root: './client' }), hono({ entry: './server/index.ts' })],
  port: 4567,
})

That's it. No Astro integration to register, no astro.config.mjs edits — the adapter drives Astro programmatically.

In seam dev, Astro runs in a worker thread (so its stdout doesn't bleed into the seam's logs) and is reachable through the seam's public URL. In seam build, the seam invokes Astro's normal build and hands the manifest to your backend adapter.

More

See the SeamStack README for the bigger picture, the mix-and-match support table, and CLI docs.