`, 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",{"_241":242,"_243":244},"routes/_app.x.$handle.$name",{"_100":99,"_32":46,"_109":90,"_27":110,"_13":14,"_111":-5,"_11":112,"_113":114,"_115":116,"_117":118,"_119":120,"_20":-5,"_121":-5,"_122":-5,"_123":25,"_124":125,"_126":60,"_127":-5,"_128":-5,"_129":130},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_44":45,"_32":46,"_39":47,"_48":-5,"_49":25,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":60,"_61":-5,"_62":-5,"_63":64,"_65":66,"_67":68,"_69":70,"_71":72,"_73":-5,"_74":75,"_76":75,"_77":78,"_79":78,"_80":78,"_81":75,"_82":75,"_83":84,"_85":86,"_87":88,"_89":25},"version",5,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":33,"_34":35,"_36":38,"_39":40,"_41":14,"_42":43,"_24":25},"previous",{"_30":31,"_32":33,"_34":35,"_36":37},"deleted",false,"deletedHere","path","frontend/components/App.tsx","latestPath","fileId","01a07797-520a-721f-b8d3-23b208593e0d","name","App.tsx","fileType","script","content","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useState } from \"https://esm.sh/react@18.2.0\";\n\nconst keys = [\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\",\"*\",\"0\",\"#\"];\n\nexport function App() {\n const [number, setNumber] = useState(\"\");\n const [status, setStatus] = useState(\"\");\n\n const add = (key: string) => { if (number.length < 20) setNumber(n => n + key); };\n const del = () => setNumber(n => n.slice(0, -1));\n const call = () => {\n if (!number) { setStatus(\"Введите номер\"); return; }\n setStatus(`Вызов ${number}…`);\n };\n\n return (\n

9:41▴ Wi‑Fi　▮▮▮ 🔋

Телефон

{number || Введите номер}

{status}

\n {keys.map(k => )}\n

\n \n \n \n

⌨★◉

\n );\n}\n","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useState } from \"https://esm.sh/react@18.2.0\";\n\nconst keys = [\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\",\"*\",\"0\",\"#\"];\nconst letters: Record = {\"2\":\"ABC\",\"3\":\"DEF\",\"4\":\"GHI\",\"5\":\"JKL\",\"6\":\"MNO\",\"7\":\"PQRS\",\"8\":\"TUV\",\"9\":\"WXYZ\"};\n\ntype Tab = \"keypad\" | \"recent\" | \"contacts\";\n\nfunction Icon({type}:{type:string}){\n const paths: Record = {\n phone:,\n contacts:,\n messages:,\n camera:<>,\n gallery:,\n calculator:,\n browser:,\n settings:\n };\n return ;\n}\n\nexport function App(){\n const [number,setNumber]=useState(\"\"); const [tab,setTab]=useState(\"keypad\");\n const [app,setApp]=useState(null); const [opening,setOpening]=useState(false); const [closing,setClosing]=useState(false);\n const [origin,setOrigin]=useState({x:\"50%\",y:\"85%\"}); const [toast,setToast]=useState(\"\"); const [time,setTime]=useState(\"\");\n const [recent,setRecent]=useState([]); const [contacts,setContacts]=useState([\"Мама\",\"Папа\",\"Алихан\"]);\n\n useEffect(()=>{const tick=()=>setTime(new Date().toLocaleTimeString(\"ru-RU\",{hour:\"2-digit\",minute:\"2-digit\"}));tick();const id=setInterval(tick,1000);return()=>clearInterval(id)},[]);\n useEffect(()=>{if(!toast)return;const id=setTimeout(()=>setToast(\"\"),1800);return()=>clearTimeout(id)},[toast]);\n\n const showToast=(s:string)=>setToast(s);\n const openPhone=(x=\"50%\",y=\"85%\")=>{setOrigin({x,y});setApp(\"Телефон\");setOpening(true);setClosing(false);setTab(\"keypad\");setTimeout(()=>setOpening(false),620)};\n const openApp=(name:string,e?:any)=>{const r=e?.currentTarget?.getBoundingClientRect?.();const host=e?.currentTarget?.closest?.(\".phone-shell\")?.getBoundingClientRect?.();let x=\"50%\",y=\"85%\";if(r&&host){x=((r.left+r.width/2-host.left)/host.width*100)+\"%\";y=((r.top+r.height/2-host.top)/host.height*100)+\"%\"}setOrigin({x,y});setApp(name);setOpening(true);setClosing(false);setTimeout(()=>setOpening(false),620)};\n const closeApp=()=>{if(!app||closing)return;setClosing(true);setTimeout(()=>{setApp(null);setClosing(false)},500)};\n const add=(k:string)=>setNumber(n=>n.length<20?n+k:n); const del=()=>setNumber(n=>n.slice(0,-1));\n const call=()=>{if(!number){showToast(\"Введите номер\");return}setRecent(r=>[number,...r.filter(x=>x!==number)].slice(0,8));showToast(`Вызов ${number}`)};\n const keyDown=(e:React.KeyboardEvent)=>{if(e.key>=\"0\"&&e.key<=\"9\")add(e.key);if(e.key===\"*\")add(\"*\");if(e.key===\"#\")add(\"#\");if(e.key===\"Backspace\")del()};\n\n const appIcon=(name:string,type:string,cls:string)=>

type===\"phone\"?openPhone():openApp(name,e)}>

{name}

;\n\n return

{time}

5G⌁▮▮▮

\n
\n
Добрый вечер
ColorOS 16
✦
\n
Туркестан
Ясно • Сегодня
28°
\n
\n {appIcon(\"Телефон\",\"phone\",\"icon-phone\")}{appIcon(\"Контакты\",\"contacts\",\"icon-contacts\")}{appIcon(\"Сообщения\",\"messages\",\"icon-messages\")}{appIcon(\"Камера\",\"camera\",\"icon-camera\")}\n {appIcon(\"Галерея\",\"gallery\",\"icon-gallery\")}{appIcon(\"Калькулятор\",\"calculator\",\"icon-calculator\")}{appIcon(\"Браузер\",\"browser\",\"icon-browser\")}{appIcon(\"Настройки\",\"settings\",\"icon-settings\")}\n
\n
openPhone()}>
openApp(\"Сообщения\")}>
openApp(\"Камера\")}>
openApp(\"Браузер\")}>
\n
\n\n {app&&
\n
\n
{app}
•••
\n {app===\"Телефон\"?<>\n
\n
\n {tab===\"keypad\"&&
{number||Введите номер}
{number?\"Нажмите зелёную кнопку для вызова\":\"\"}
{keys.map(k=>)}
* и # поддерживаются • До 20 символов
}\n {tab===\"recent\"&&
{recent.length?recent.map((n,i)=>
{setNumber(n);setTab(\"keypad\")}}>
☎
{n}
Исходящий вызов
сейчас
):
История вызовов пуста
}
}\n {tab===\"contacts\"&&
{contacts.map((c,i)=>
{c[0]}
{c}
Мобильный
)}
}\n
\n :
{app===\"Камера\"?\"◉\":app===\"Галерея\"?\"▧\":app===\"Калькулятор\"?\"＋\":app===\"Настройки\"?\"⚙\":\"◌\"}
{app}
Интерфейс в стиле ColorOS 16 готов к работе
}\n
\n
}\n
\n {toast&&
{toast}
}\n

;\n}\n","createdAt",["D",1788719829797],"branchVersion","branchId","1180775f-da65-4564-8aed-d0c9e6324e8f","id","7feb3bcd-aee7-4666-b13d-e0958140c3e3","mini-dialer",["D",1788712800632],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Мини-звонилка с цифровой клавиатурой","imageUrl","6fbccba7-1304-452e-9c47-63a82b93ab80","pinnedFileId","01a07797-520a-721f-b8d3-47498f042c87","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a07777-e619-74c3-b583-4fbaca18818a","tursoName","7feb3bcdaee74666b13de0958140c3e3","tursoHostname","7feb3bcdaee74666b13de0958140c3e3-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789494036282],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_100":99,"_108":104},"org",{"_100":99,"_101":102,"_103":104,"_18":56,"_105":106,"_107":25},"branch",{"_13":14,"_32":90,"_44":43,"_91":45,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":46,"_98":99},"isOwned","main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","alizhan0818","handle","displayName","Алижан","avatar","https://lh3.googleusercontent.com/a/ACg8ocJCKDI1euTzxy69SEJ3KYyrMIx0Lsefabw9acb-nqWJ6PtpYA=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_44":45,"_32":46,"_39":236,"_48":-5,"_49":25,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":60,"_61":-5,"_62":-5,"_63":64,"_65":66,"_67":68,"_69":70,"_71":237,"_73":-5,"_74":75,"_76":75,"_77":78,"_79":78,"_80":78,"_81":75,"_82":75,"_83":238,"_85":239,"_87":240,"_89":25},"tree",[173,180,181,182],"files",[173,174,175,176,177,178,179,180,181,182],"counts",{"_163":64,"_164":138,"_165":64,"_166":167,"_168":169},"contents",[131,132,133,134],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_44":157,"_32":158,"_30":159,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":160,"_13":64,"_34":161,"_36":-5,"_24":25,"_143":-5,"_27":162},{"_44":151,"_32":152,"_30":153,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":154,"_13":64,"_34":20,"_36":155,"_24":25,"_143":-5,"_27":156},{"_44":145,"_32":146,"_30":147,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":148,"_13":64,"_34":20,"_36":149,"_24":25,"_143":-5,"_27":150},{"_44":135,"_32":136,"_30":58,"_137":-5,"_42":43,"_41":138,"_139":60,"_39":140,"_13":64,"_34":141,"_36":142,"_24":25,"_143":-5,"_27":144},"a9deae09-d612-46b7-a0fc-7829d1756b51","index.ts","parentId",1,"latest",["D",1788712800632],"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",[136],"6b5ef217-e3df-4172-9443-ff80a078d2d3","README.md","01a07797-520a-721f-b8d3-43162841773b",["D",1788712800632],"# 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",[146],"52665cc5-4a04-4de2-a9f0-26807e2e3d7a","CHANGELOG.md","01a07797-520a-721f-b8d3-3dbb5a9a456d",["D",1788712800632],"# 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 \n \n \n \n \n );\n}\n",[],[158,194],"70af3f76-73c9-4196-9faa-193ee2452b70","index.tsx","01a07797-520a-721f-b8d3-33ddedca3ce0",["D",1788712800632],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { createRoot } from \"https://esm.sh/react-dom@18.2.0/client\";\nimport { App } from \"./components/App.tsx\";\n\nconst root = document.getElementById(\"root\");\nif (!root) {\n throw new Error(\"No root element found\");\n}\n\ncreateRoot(root).render();",[],[158,203],"1de0a390-1126-4f53-96f6-4bb8e4414574","favicon.svg","01a07797-520a-721f-b8d3-2ef50e137565",["D",1788712800632],"\n",[],[158,210],"42d52226-ea80-4bc2-bad1-04745bee69a1","Counter.tsx","01a07797-520a-721f-b8d3-26355def4243","01a07797-520a-721f-b8d3-2ae6397774b5",["D",1788712800632],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useState } from \"https://esm.sh/react@18.2.0\";\n\nexport function Counter() {\n const [count, setCount] = useState(0);\n return (\n
\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",[],[158,224,217],"components","cdef1395-3a20-491a-85f6-28bc5be55b81",["D",1788719829797],[],[158,224,33],"e7c2e9db-c68f-4146-bfb5-f86d31c5ed14",["D",1788712800632],[175,176],[158,224],["D",1788712800632],[174,177,178,179],[158],["D",1788712800632],["D",1789494036282],{"_100":99,"_108":104},{"_100":99,"_101":102,"_103":104,"_18":56,"_105":106,"_107":25},{"_13":14,"_32":90,"_44":43,"_91":45,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":46,"_98":99},"ctx",{"_83":-5,"_128":274,"_275":276,"_277":278,"_279":25,"_280":25,"_281":25,"_282":60,"_283":-5,"_284":-7,"_285":-7,"_286":64,"_287":25,"_288":25,"_289":-5,"_290":25,"_291":25,"_292":25,"_293":-5},"ENV",{"_245":246,"_247":248,"_249":90,"_250":251,"_252":253,"_254":255,"_256":257,"_258":259,"_260":261,"_262":263,"_264":265,"_266":267,"_268":269,"_270":271,"_272":273},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v5