`, 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

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_271":272,"_273":274},"routes/_app.x.$handle.$name",{"_105":104,"_37":50,"_114":95,"_32":115,"_13":14,"_116":-5,"_11":117,"_118":119,"_120":121,"_122":123,"_124":125,"_26":-5,"_126":-5,"_127":-5,"_128":30,"_129":130,"_131":64,"_132":-5,"_133":-5,"_134":135},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_48":49,"_37":50,"_43":51,"_52":-5,"_53":30,"_54":55,"_56":55,"_57":58,"_59":-5,"_19":60,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":68,"_69":70,"_71":72,"_73":74,"_75":76,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":88,"_89":90,"_91":92,"_93":30},"version",3,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","09c018e8-a6f2-4fbb-9ad3-42d5179d3312","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":-7,"_29":30,"_31":30,"_32":33,"_34":33},"file",{"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":14,"_46":47,"_29":30},"previous","deleted",false,"deletedHere","path","lib/ai.ts","latestPath","fileId","a7457950-9ed5-11f1-b459-1607ee4eb77e","name","ai.ts","fileType","script","content","// Gemini-backed AI Cameriere + dish image generation.\n// Key lives in the GEMINI_API_KEY env var (never in code or logs).\n\nconst API = \"https://generativelanguage.googleapis.com/v1beta\";\n// Chat for the waiter. Swap for another cheap multimodal model if you prefer.\nconst CHAT_MODEL = \"gemini-3.5-flash\";\n// Native image generation (Gemini 2.5 Flash Image, a.k.a. Nano Banana).\nconst IMAGE_MODEL = \"gemini-2.5-flash-image\";\n\nfunction apiKey(): string {\n const k = Deno.env.get(\"GEMINI_API_KEY\");\n if (!k) throw new Error(\"Missing GEMINI_API_KEY env var\");\n return k;\n}\n\n/** Ask the AI waiter for a line of dialogue, given a system persona. */\nexport async function waiterSay(system: string, user: string): Promise {\n const res = await fetch(\n `${API}/models/${CHAT_MODEL}:generateContent?key=${apiKey()}`,\n {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n systemInstruction: { parts: [{ text: system }] },\n contents: [{ role: \"user\", parts: [{ text: user }] }],\n generationConfig: { temperature: 1.0, responseModalities: [\"TEXT\"] },\n }),\n },\n );\n const data = await res.json().catch(() => ({}));\n if (!res.ok) {\n console.error(\"Gemini chat failed\", res.status, data);\n throw new Error(data?.error?.message ?? \"AI Cameriere non risponde\");\n }\n const parts = data?.candidates?.[0]?.content?.parts ?? [];\n return parts.map((p: Record) => p?.text ?? \"\").join(\"\").trim();\n}\n\n/** Generate a dish image from the player's free-text order. Returns a data URL. */\nexport async function generateDishImage(\n orderText: string,\n playerName: string,\n): Promise {\n const prompt =\n `Overhead food photograph, appetizing restaurant dish served on a ceramic plate ` +\n `on a dark bistro table, matching this exact order by ${playerName}: \"${orderText}\". ` +\n `Garnished and plated beautifully, realistic studio lighting, shallow depth of field, high detail.`;\n const res = await fetch(\n `${API}/models/${IMAGE_MODEL}:generateContent?key=${apiKey()}`,\n {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n contents: [{ role: \"user\", parts: [{ text: prompt }] }],\n generationConfig: { responseModalities: [\"IMAGE\"] },\n }),\n },\n );\n const data = await res.json().catch(() => ({}));\n if (!res.ok) {\n console.error(\"Gemini image failed\", res.status, data);\n throw new Error(data?.error?.message ?? \"Non riesco a preparare il piatto\");\n }\n const parts = data?.candidates?.[0]?.content?.parts ?? [];\n for (const p of parts) {\n const b64 = p?.inlineData?.data ?? p?.inline_data?.data;\n if (typeof b64 === \"string\") return `data:image/png;base64,${b64}`;\n }\n throw new Error(\"Nessuna immagine generata per il piatto\");\n}\n\n/** A safe fallback dish image (SVG data URL) used if the API fails. */\nexport function placeholderDish(orderText: string): string {\n const safe = orderText.length > 0 ? orderText.slice(0, 40) : \"Piatto\";\n const svg =\n ``;\n return `data:image/svg+xml;base64,${btoa(svg)}`;\n}\n\nfunction escapeXml(s: string): string {\n return s.replace(/[<>&'\"]/g, (c) =>\n ({ \"<\": \"<\", \">\": \">\", \"&\": \"&\", \"'\": \"'\", '\"': \""\" })[c]!);\n}\n","createdAt",["D",1787477589660],"branchVersion","branchId","d37ffabd-ddb0-472a-8701-c0eef966a563","id","f7417c8d-2e35-43cf-b2d5-043eaf93137e","chaos-diner",["D",1787477491994],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Chaos Diner RPG – AI waiter, food fights & survival multiplayer","imageUrl","86c0904a-df90-4b28-8be9-0d0cd34688de","pinnedFileId","01a02df6-016f-774c-911b-10e7600604d6","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a02515-3428-7129-a58d-ee30dee1111b","tursoName","f7417c8d2e3543cfb2d5043eaf93137e","tursoHostname","f7417c8d2e3543cfb2d5043eaf93137e-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789476648181],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_105":104,"_113":109},"org",{"_105":104,"_106":107,"_108":109,"_19":60,"_110":111,"_112":30},"branch",{"_13":94,"_37":95,"_48":47,"_96":49,"_97":-5,"_98":-5,"_99":-5,"_100":-5,"_101":-5,"_102":50,"_103":104},"isOwned",48,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","boh","handle","displayName","BCG Collaborazioni","avatar","https://lh3.googleusercontent.com/a/ACg8ocK88V05YV8HsO4yAaG3hTsa_rYvYnQ7JithXHAoBkrpvT9HmN8=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_48":49,"_37":50,"_43":266,"_52":-5,"_53":30,"_54":55,"_56":55,"_57":58,"_59":-5,"_19":60,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":68,"_69":70,"_71":72,"_73":74,"_75":267,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":268,"_89":269,"_91":270,"_93":30},"tree",[185,192,195,196,197],"files",[185,186,187,188,189,190,191,192,193,194,195,196,197],"counts",{"_175":68,"_176":144,"_177":68,"_178":179,"_180":181},"contents",[136,137,138,139,140],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_48":170,"_37":171,"_35":172,"_143":-5,"_46":47,"_45":144,"_145":64,"_43":173,"_13":68,"_39":168,"_41":-5,"_29":30,"_149":-5,"_32":174},{"_48":163,"_37":164,"_35":165,"_143":-5,"_46":47,"_45":166,"_145":64,"_43":167,"_13":68,"_39":168,"_41":-5,"_29":30,"_149":-5,"_32":169},{"_48":157,"_37":158,"_35":159,"_143":-5,"_46":47,"_45":144,"_145":64,"_43":160,"_13":68,"_39":26,"_41":161,"_29":30,"_149":-5,"_32":162},{"_48":151,"_37":152,"_35":153,"_143":-5,"_46":47,"_45":144,"_145":30,"_43":154,"_13":68,"_39":26,"_41":155,"_29":30,"_149":-5,"_32":156},{"_48":141,"_37":142,"_35":62,"_143":-5,"_46":47,"_45":144,"_145":30,"_43":146,"_13":68,"_39":147,"_41":148,"_29":30,"_149":50,"_32":150},"5264dd49-df57-4b2c-aeff-101504972338","index.ts","parentId",1,"latest",["D",1787477491994],"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\n\nconst app = new Hono();\n\n// Serve the (never-cached) HTML shell at the root /\napp.get(\"/\", (c) => c.html(Root()));\n\n// Serve frontend files at the version-addressed URLs Root() stamps, cached immutably\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\n\n// View source redirect\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\n// Add your API routes here\n// app.get(\"/api/data\", c => c.json({ hello: \"world\" }));\n\n// Unwrap and rethrow Hono errors as the original error\n// If you delete this, all errors will be \"Internal Server Error\"\napp.onError((err) => Promise.reject(err));\n\n// HTTP vals expect an exported \"fetch handler\"\n// This is how you \"run the server\" in Val Town with Hono\nexport default app.fetch;\n","label",[142],"bc42f3ef-b62f-47ff-aeb2-f53d991d8adc","README.md","01a02df6-016f-774c-911b-0f8a49cdb17a",["D",1787477491994],"# 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",[152],"d4196661-d5a3-44a8-9acb-9c96e3e22721","CHANGELOG.md","01a02df6-016f-774c-911b-0ba924477586",["D",1787477491994],"# 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

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