`, 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",{"_331":332,"_333":334},"routes/_app.x.$handle.$name",{"_107":106,"_38":52,"_116":97,"_33":117,"_13":14,"_118":-5,"_11":119,"_120":121,"_122":123,"_124":125,"_126":127,"_26":-5,"_128":-5,"_129":-5,"_130":31,"_131":132,"_133":66,"_134":-5,"_135":-5,"_136":137},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_50":51,"_38":52,"_45":53,"_54":-5,"_55":31,"_56":57,"_58":57,"_59":60,"_61":-5,"_19":62,"_63":64,"_65":66,"_67":-5,"_68":-5,"_69":70,"_71":72,"_73":74,"_75":76,"_77":78,"_79":-5,"_80":81,"_82":81,"_83":84,"_85":84,"_86":84,"_87":81,"_88":81,"_89":90,"_91":92,"_93":94,"_95":31},"version",18,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","09c018e8-a6f2-4fbb-9ad3-42d5179d3312","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":29,"_30":31,"_32":31,"_33":34,"_35":34},"file",{"_36":37,"_38":39,"_40":41,"_42":44,"_45":46,"_47":14,"_48":49,"_30":31},"previous",{"_36":37,"_38":39,"_40":41,"_42":43},"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,${btoa(svg)}`;\n}\n\nfunction escapeXml(s: string): string {\n return s.replace(/[<>&'\"]/g, (c) =>\n ({ \"<\": \"<\", \">\": \">\", \"&\": \"&\", \"'\": \"'\", '\"': \""\" })[c]!);\n}\n","// Gemini-backed AI Cameriere + dish image generation.\n// Key lives in the GEMINI_API_KEY env var (never in code or logs).\n\nconst API = \"https://generativelanguage.googleapis.com/v1beta\";\n// Chat for the waiter. Swap for another cheap multimodal model if you prefer.\nconst CHAT_MODEL = \"gemini-3.5-flash\";\n// Native image generation (Gemini 2.5 Flash Image, a.k.a. Nano Banana).\nconst IMAGE_MODEL = \"gemini-2.5-flash-image\";\n\nfunction apiKey(): string {\n const k = Deno.env.get(\"GEMINI_API_KEY\");\n if (!k) throw new Error(\"Missing GEMINI_API_KEY env var\");\n return k;\n}\n\n/** Ask the AI waiter for a line of dialogue, given a system persona. */\nexport async function waiterSay(system: string, user: string): Promise {\n const res = await fetch(\n `${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,${b64(svg)}`;\n}\n\n/** Base64 that handles non-Latin1 (emoji, accents) via UTF-8 encoding. */\nfunction b64(s: string): string {\n const bytes = new TextEncoder().encode(s);\n let bin = \"\";\n for (const b of bytes) bin += String.fromCharCode(b);\n return btoa(bin);\n}\n\nfunction escapeXml(s: string): string {\n return s.replace(/[<>&'\"]/g, (c) =>\n ({ \"<\": \"<\", \">\": \">\", \"&\": \"&\", \"'\": \"'\", '\"': \""\" })[c]!);\n}\n","createdAt",["D",1787477849516],"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 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{ parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\nimport * as game from \"./lib/game.ts\";\n\nconst app = new Hono();\n\n// ---- frontend -------------------------------------------------------------\n\napp.get(\"/\", (c) => c.html(Root()));\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\n// ---- helpers ---------------------------------------------------------------\n\nasync function readJson(c: { req: Request }): Promise> {\n try {\n return await c.req.json();\n } catch {\n return {};\n }\n}\n\n/** Look up the room, run a mutator, and persist + return the freshest state. */\nasync function mutate(\n c: { json: (x: unknown, status?: number) => Response },\n roomId: string,\n fn: () => Promise,\n ok = 200,\n): Promise {\n const result = await fn();\n if (result === null || result === undefined) {\n return c.json({ error: \"Stanza non trovata o azione non consentita\" }, 404);\n }\n return c.json(result, ok);\n}\n\n// ---- API ------------------------------------------------------------------\n\napp.post(\"/api/room\", async (c) => {\n const { name } = await readJson(c);\n const state = await game.createRoom(String(name ?? \"\").slice(0, 24));\n return c.json({ state, selfId: state.players[0].id }, 201);\n});\n\napp.post(\"/api/room/join\", async (c) => {\n const { code, name } = await readJson(c);\n const state = await game.joinRoom(String(code ?? \"\"), String(name ?? \"\").slice(0, 24));\n if (!state) return c.json({ error: \"Codice non trovato\" }, 404);\n // figure out which player is \"me\"\n const me = state.players\n .filter((p) => p.name === String(name ?? \"\").trim())\n .at(-1) ?? state.players[0];\n return c.json({ state, selfId: me.id });\n});\n\n// Poll: returns snapshot + incremental events, and advances time-based phases.\napp.get(\"/api/room/:id\", async (c) => {\n const id = c.req.param(\"id\");\n const since = Number(c.req.query(\"since\") ?? 0) || 0;\n const snap = await game.tick(id, since);\n if (!snap) return c.json({ error: \"Stanza non trovata\" }, 404);\n return c.json(snap);\n});\n\n// Full plates with embedded images (for serving animation + late joiners).\napp.get(\"/api/room/:id/plates\", async (c) => {\n const id = c.req.param(\"id\");\n const state = await game.getRoom(id);\n if (!state) return c.json({ error: \"Stanza non trovata\" }, 404);\n return c.json({ plates: game.getPlates(state) });\n});\n\napp.post(\"/api/room/:id/start\", async (c) => {\n const id = c.req.param(\"id\");\n return mutate(c, id, () => game.startDinner(id));\n});\n\napp.post(\"/api/room/:id/order\", async (c) => {\n const id = c.req.param(\"id\");\n const { player, orderText } = await readJson(c);\n return mutate(c, id, () =>\n game.placeOrder(id, String(player ?? \"\"), String(orderText ?? \"\")));\n});\n\napp.post(\"/api/room/:id/eat\", async (c) => {\n const id = c.req.param(\"id\");\n const { player } = await readJson(c);\n return mutate(c, id, () => game.eat(id, String(player ?? \"\")));\n});\n\napp.post(\"/api/room/:id/throw\", async (c) => {\n const id = c.req.param(\"id\");\n const { player, target } = await readJson(c);\n const t = target as { type?: string; playerId?: string };\n const parsed =\n t?.type === \"player\" && t.playerId\n ? { type: \"player\", playerId: t.playerId } as const\n : { type: \"waiter\" } as const;\n return mutate(c, id, () => game.throwFood(id, String(player ?? \"\"), parsed));\n});\n\napp.post(\"/api/room/:id/survive\", async (c) => {\n const id = c.req.param(\"id\");\n const { player, choice } = await readJson(c);\n return mutate(c, id, () =>\n game.survive(id, String(player ?? \"\"), String(choice ?? \"\")));\n});\n\n// -- serve a \"serving done\" fast-forward (client finished the animation) ----\napp.post(\"/api/room/:id/servingDone\", async (c) => {\n const id = c.req.param(\"id\");\n return mutate(c, id, async () => {\n const state = await game.getRoom(id);\n if (!state || state.phase !== \"serving\") return state;\n state.phase = \"chill\";\n await game.addEvent(id, \"SERVING_DONE\", {});\n await game.saveRoom(state);\n return state;\n });\n});\n\napp.onError((err) => Promise.reject(err));\n\nexport default app.fetch;\n","label",[144],"bc42f3ef-b62f-47ff-aeb2-f53d991d8adc","README.md","01a02df6-016f-774c-911b-0f8a49cdb17a",1,["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",[155],"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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