`, 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",{"_240":241,"_242":243},"routes/_app.x.$handle.$name",{"_105":104,"_38":50,"_114":95,"_33":115,"_13":14,"_116":-5,"_11":117,"_118":119,"_120":121,"_122":123,"_124":125,"_26":-5,"_126":-5,"_127":-5,"_128":31,"_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,"_38":50,"_43":51,"_52":-5,"_53":31,"_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":31},"version",5,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","461212e2-b28a-45ca-a354-c5878a15be98","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":29,"_30":31,"_32":31,"_33":34,"_35":34},"file",{"_36":37,"_38":34,"_39":26,"_40":42,"_43":44,"_45":14,"_46":47,"_30":31},"previous",{"_36":37,"_38":34,"_39":26,"_40":41},"deleted",false,"deletedHere","path","README.md","latestPath","fileId","01a0a53c-47b2-77dd-bce2-439ff7a0e667","name","fileType","content","# 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","# 🐍 Snake\n\nA classic Snake game built as a **client-side React val** on Val Town. It runs entirely in your browser — no installs, no downloads, works on any Chromebook.\n\n## Play it\n\n[Play the game](url:index.ts) — it's live at \n\n## How to play\n\n- Use **arrow keys** or **WASD** to steer the green snake\n- Eat the **red food** to grow and score\n- Don't hit the walls or your own body\n- Adjust the **speed slider** to make it easier or harder\n- Your **best score** is tracked for the session\n\n## File structure\n\n```\nindex.ts ← Hono server (serves the frontend)\nfrontend/\n root.tsx ← HTML shell\n index.tsx ← React entrypoint (mounts )\n components/\n App.tsx ← The whole Snake game (canvas + game loop)\n```\n\n## Editing the game\n\nEverything lives in [`frontend/components/App.tsx`](url:frontend/components/App.tsx).\nTweak things like:\n\n- **Speed** — the `speed` state (default `140` ms per move)\n- **Board size** — `COLS` / `ROWS` (default `20×20`)\n- **Colors** — the `#22c55e` / `#15803d` / `#ef4444` fills in `draw()`\n- **Controls** — the key `map` in the keyboard handler\n\nJust edit, save, and Val Town redeploys instantly.\n","createdAt",["D",1789478671079],"branchVersion","branchId","ac2ee891-5cfd-4044-ab26-c6a03b116ff2","id","8d316882-cbc7-4dd2-a1e3-6c0aae9c1e8e","nebula-game",["D",1789478586214],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","JJK turn-based RPG fighting game, playable in browser","imageUrl","d6d32317-8e12-4003-b452-8bd4229aeca3","pinnedFileId","01a0a53c-47b2-77dd-bce2-442aef00ca2f","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a0a0c6-84d9-72a5-9904-46bf8e8a5e5f","tursoName","8d316882cbc74dd2a1e36c0aae9c1e8e","tursoHostname","8d316882cbc74dd2a1e36c0aae9c1e8e-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789479081816],"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":31},"branch",{"_13":94,"_38":95,"_48":47,"_96":49,"_97":-5,"_98":-5,"_99":-5,"_100":-5,"_101":-5,"_102":50,"_103":104},"isOwned",22,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","IceyDomain","handle","displayName","Nathaniel Barrett","avatar","https://avatars.githubusercontent.com/u/174974902?v=4","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_48":49,"_38":50,"_43":235,"_52":-5,"_53":31,"_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":236,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":237,"_89":238,"_91":239,"_93":31},"tree",[176,182,183,184],"files",[176,177,178,179,180,181,182,183,184],"counts",{"_166":68,"_167":143,"_168":68,"_169":170,"_171":172},"contents",[136,137,138,139],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_48":160,"_38":161,"_36":162,"_142":-5,"_46":47,"_45":143,"_144":64,"_43":163,"_13":68,"_39":164,"_40":-5,"_30":31,"_148":-5,"_33":165},{"_48":154,"_38":155,"_36":156,"_142":-5,"_46":47,"_45":143,"_144":64,"_43":157,"_13":68,"_39":26,"_40":158,"_30":31,"_148":-5,"_33":159},{"_48":151,"_38":34,"_36":37,"_142":-5,"_46":47,"_45":14,"_144":31,"_43":152,"_13":143,"_39":26,"_40":42,"_30":31,"_148":-5,"_33":153},{"_48":140,"_38":141,"_36":62,"_142":-5,"_46":47,"_45":143,"_144":64,"_43":145,"_13":68,"_39":146,"_40":147,"_30":31,"_148":149,"_33":150},"da58790c-a508-4379-8ca8-844c5fc1e6a9","index.ts","parentId",1,"latest",["D",1789478586214],"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","nebula-snake",[141],"3e5db51f-180f-4440-9fb1-692a711610b8",["D",1789478671079],[34],"83e0cc94-a059-4ba9-9562-b0a0e332e0b4","CHANGELOG.md","01a0a53c-47b2-77dd-bce2-3d0b98040573",["D",1789478586214],"# 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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