@takuhon/vercel

Read-only Vercel adapter for takuhon.

It publishes a profile on Vercel by mounting the framework-agnostic public app from @takuhon/api on the Vercel runtime: the server-rendered profile page (with embedded Schema.org JSON-LD), the public read API, and the canonical takuhon.json. There is no database, admin UI, or auth — you edit takuhon.json in Git, push, and Vercel redeploys.

What it serves

• GET / and GET /<locale>/ — the server-rendered profile page with JSON-LD
• GET /api/profile · GET /api/jsonld · GET /api/schema
• GET /takuhon.json · GET /.well-known/takuhon.json
• GET /health

The same public privacy filter as every other surface is applied, so settings.publicVisibility and the field-level controls behave identically to a Cloudflare deployment.

Not included (use the Cloudflare adapter for these)

Image uploads (/assets/*), the MCP endpoint (/mcp), and the activity badge / sync (/activity.svg, cron) are Cloudflare-only. On Vercel, GET /api/activity answers 404 and the discovery document omits mcp.

Install

npm install @takuhon/vercel

Quick start (Next.js App Router)

Add a catch-all route that mounts the app, and bundle your takuhon.json:

// app/[[...route]]/route.ts
import { createTakuhonVercelApp, BundledTakuhonStorage } from '@takuhon/vercel';
import { handle } from 'hono/vercel';
import profile from '../../takuhon.json';

const app = createTakuhonVercelApp({ storage: new BundledTakuhonStorage(profile) });

export const GET = handle(app);

// vercel.json
{ "framework": "nextjs" }

That's it — vercel deploy publishes the profile. To change it, edit takuhon.json, commit, and push.

Data source

The canonical takuhon.json can come from two places:

• Bundled (default). Import the file and pass it to BundledTakuhonStorage, as above. The document is validated once at startup, so an invalid profile fails fast.
• Fetched from a URL. Set TAKUHON_DATA_URL and use UrlTakuhonStorage; the profile is fetched once per serverless instance and cached.

import { createTakuhonVercelApp, UrlTakuhonStorage } from '@takuhon/vercel';
import { handle } from 'hono/vercel';

const app = createTakuhonVercelApp({
  storage: new UrlTakuhonStorage(process.env.TAKUHON_DATA_URL!),
});

export const GET = handle(app);

API

• createTakuhonVercelApp({ storage, fallback? }) — returns a Hono app to mount with hono/vercel's handle.
• BundledTakuhonStorage(profile) — read-only storage over an in-memory profile.
• UrlTakuhonStorage(url, { fetch? }) — read-only storage fetched once from url.

License

Apache-2.0. See LICENSE and NOTICE.