`, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter

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\n Clicked\n setCount((c) => c + 1)}\n class=\"bg-blue-500 hover:bg-blue-600 text-white font-medium px-4 py-2 rounded-lg transition-colors cursor-pointer\"\n >\n {count}\n \n times\n

\n );\n}\n","deleted",false,"label",[57,58,35],"frontend","components",{"_33":87,"_13":57,"_36":88,"_38":-5,"_40":41,"_42":43,"_44":45,"_46":89,"_17":48,"_49":90,"_51":-5,"_53":54,"_55":-5,"_70":91,"_18":92},{"_33":80,"_13":81,"_36":82,"_38":-5,"_40":41,"_42":43,"_44":45,"_46":83,"_17":48,"_49":24,"_51":84,"_53":54,"_55":-5,"_70":85,"_18":86},{"_33":73,"_13":74,"_36":75,"_38":-5,"_40":41,"_42":43,"_44":45,"_46":76,"_17":48,"_49":24,"_51":77,"_53":54,"_55":-5,"_70":78,"_18":79},{"_33":63,"_13":64,"_36":65,"_38":-5,"_40":41,"_42":66,"_44":45,"_46":67,"_17":43,"_49":68,"_51":69,"_53":54,"_55":-5,"_70":71,"_18":72},"f7bb3e70-dedc-471c-a926-15979abae8bb","index.ts","01a02855-9217-76c2-81b8-735e8c77f3be",3,["D",1787383174112],"http","import { parseVal,serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite/global.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\nconst app=new Hono();\nawait sqlite.execute(`CREATE TABLE IF NOT EXISTS tc_licenses (license_key TEXT PRIMARY KEY,plan TEXT NOT NULL,customer TEXT,created_at TEXT NOT NULL,activated_at TEXT,expires_at TEXT,device_id TEXT,active INTEGER NOT NULL DEFAULT 1)`);\nconst auth=(c:any)=>c.req.header(\"x-admin-password\")===Deno.env.get(\"ADMIN_PASSWORD\");\napp.get(\"/\",c=>c.html(Root()));app.get(\"/__immutable/*\",c=>serveImmutableFile(c.req.path));app.get(\"/source\",c=>c.redirect(parseVal().links.self.val));\napp.post(\"/api/login\",async c=>{const b=await c.req.json();return auth({req:{header:()=>b.password}})?c.json({ok:true}):c.json({ok:false},401)});\napp.get(\"/api/licenses\",async c=>{if(!auth(c))return c.json({error:\"No autorizado\"},401);const r=await sqlite.execute(\"SELECT * FROM tc_licenses ORDER BY created_at DESC LIMIT 200\");return c.json(r.rows)});\napp.post(\"/api/licenses\",async c=>{if(!auth(c))return c.json({error:\"No autorizado\"},401);const b=await c.req.json();if(![\"semanal\",\"mensual\",\"semestral\",\"anual\"].includes(b.plan))return c.json({error:\"Plan inválido\"},400);const raw=crypto.randomUUID().replaceAll(\"-\",\"\").slice(0,12).toUpperCase();const key=\"TC-\"+raw.match(/.{1,4}/g).join(\"-\");await sqlite.execute({sql:\"INSERT INTO tc_licenses(license_key,plan,customer,created_at) VALUES(?,?,?,?)\",args:[key,b.plan,String(b.customer||\"\"),new Date().toISOString()]});return c.json({ok:true,key})});\napp.patch(\"/api/licenses/:key\",async c=>{if(!auth(c))return c.json({error:\"No autorizado\"},401);await sqlite.execute({sql:\"UPDATE tc_licenses SET active=? WHERE license_key=?\",args:[(await c.req.json()).active?1:0,c.req.param(\"key\")]});return c.json({ok:true})});\napp.onError(e=>Promise.reject(e));export default app.fetch;","children",[],[64],"9199f52e-f6d5-47c3-afb0-e0113e74d3a0","README.md","01a02855-9217-76c2-81b8-6eaba4d8bea0",["D",1787383091648],"# React + Hono Starter\n\nA minimal starter template for building client-side React apps with a Hono\nbackend on Val Town. Click **Remix** to get your own copy.\n\n## Picking a starter\n\n| Starter | When to pick it |\n| --- | --- |\n| [`basic-html-starter`](https://www.val.town/x/templates/basic-html-starter) | Static HTML pages. Sprinkle of vanilla JS. No server-side rendering. |\n| [`hono-jsx-starter`](https://www.val.town/x/templates/hono-jsx-starter) | Dynamic server-rendered HTML with JSX. API routes. No React, no SPA. |\n| **[`react-hono-starter`](https://www.val.town/x/templates/react-hono-starter)** *(you're here)* | Client-side React SPA with a Hono API backend. |\n\n**Want to build UI?** Start writing React components in\n[`frontend/components/`](/frontend/components/). Import them into `App.tsx` and\nyou're good to go. Styling is [Twind](https://twind.style/) — just use Tailwind\nutility classes, zero config.\n\n**Want to add an API?** Add routes in [`index.ts`](/index.ts) (there's a\ncommented-out example). Fetch them from your React components.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|\"GET /\"| Hono[\"index.ts
(Hono server)\"]\n Hono -->|serves| HTML[\"root.tsx\"]\n HTML -->|loads| Entry[\"index.tsx\"]\n Entry -->|renders| App[\"App.tsx\"]\n App -->|renders| Counter[\"Counter.tsx\"]\n```\n\n## File structure\n\n```\nindex.ts ← Hono backend (serves frontend + API routes)\nfrontend/\n root.tsx ← HTML shell (stamps immutable asset URLs)\n index.tsx ← React entrypoint (mounts )\n favicon.svg ← App icon\n components/\n App.tsx ← Root component (layout + view source link)\n Counter.tsx ← Example component with state\n```\n\n## How it works\n\n1. **`index.ts`** is the HTTP entrypoint — a Hono server that serves the\n frontend and any API routes you add.\n2. **`frontend/root.tsx`** is the HTML shell — it loads Twind and stamps\n immutable asset URLs for the favicon and React entrypoint.\n3. **`frontend/index.tsx`** mounts the React app.\n4. **`frontend/components/App.tsx`** is the root layout — add new components\n alongside it.\n5. **`frontend/components/Counter.tsx`** is an example stateful component —\n replace it with your own!\n\n## Next steps\n\n- Add API routes in `index.ts`\n- Add new components in `frontend/components/`\n- Add a SQLite database — see the\n [React Hono Example](https://www.val.town/x/stevekrouse/reactHonoExample) for\n a full-stack example with database, queries, and shared types\n\nTemplate updates and upgrade paths for existing remixes: [CHANGELOG.md](/CHANGELOG.md)\n",[],[74],"63c8955d-a3a0-4dd3-8055-591f8556fd5b","CHANGELOG.md","01a02855-9217-76c2-81b8-694ad15037de",["D",1787383091648],"# Changelog\n\n## 2026-07-30 — Immutable asset caching\n\nFrontend files are now served at version-addressed URLs\n(`/__immutable/45/frontend/index.tsx`) with\n`Cache-Control: public, max-age=31536000, immutable`, so repeat visits load the\nwhole client graph from the browser cache — roughly 3× faster (~665ms → ~157ms\nmeasured). Publishing your val bumps its version, which changes every URL, so\ncaches invalidate automatically. Old-version URLs return 404 after a publish\n(like Next.js build assets); a reload picks up the new version.\n\nWhat changed in the template:\n\n- `frontend/index.html` → [`frontend/root.tsx`](/frontend/root.tsx): the HTML\n shell is now JSX and stamps asset URLs with `immutableFileUrl()`\n- [`index.ts`](/index.ts): serves `Root()` at `/`, and one\n `app.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path))` route\n serves all frontend files\n\n### Upgrading an existing remix\n\nYour copy of this template doesn't update automatically. Two options:\n\n**Minimal (most of the benefit):** point both routes at `serveImmutableFile` —\nyour existing bare URLs redirect into versioned space, the new route serves\nthem, and the whole module graph gets cached (costs one redirect per page view):\n\n```ts\nimport { serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\n\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/frontend/**/*\", (c) => serveImmutableFile(c.req.path)); // was serveFile\n```\n\n**Full upgrade (also removes the redirect):** three self-contained steps —\nno other files needed. Adjust the ``, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter\n